Carter Kieboom - MLB News, Rumors, & Updates

Enters open market Kieboom cleared waivers Wednesday and elected free agency.

Impact Kieboom spent the vast majority of 2025 with the Angels' Triple-A affiliate, slashing .319/.368/.449 with nine homers, 57 RBI, 48 runs scored and 11 stolen bases through 93 games. The 28-year-old will now enter the offseason with the freedom to sign with whichever team he chooses, though he will almost certainly have to settle for a minor-league contract.

OCTOBER 22 • ROTOWIRE

Up in big leagues The Angels selected Kieboom's contract from Triple-A Salt Lake, and he's starting at first base and batting seventh Tuesday against the Brewers.

Impact The 28-year-old inked a minor-league deal with the Angels in February and will receive a look in the majors with less than two weeks left in the regular season. Kieboom has an .817 OPS with nine homers and 11 steals in 93 contests with Salt Lake this year and is getting his first game action in the big leagues since 2023.

SEPTEMBER 16 • ROTOWIRE

Signs with Angels, gets camp invite Kieboom signed a minor-league contract with the Angels in December, per Maren Angus-Coombs of SI.com, and he has been invited to major-league spring training.

Impact Kieboom was a first-round pick in the 2016 First-Year Player Draft, but he's been unable to find success in the majors, slashing .199/.297/.301 with 12 home runs, 42 RBI, 57 runs and no stolen bases over 508 regular-season plate appearances with Washington. He spent all of last season at Triple-A and recorded a mediocre .751 OPS across 359 trips to the plate. Kieboom likely faces an uphill battle in trying to break camp with Los Angeles, but there's at least a feasible path to doing so, as the Angels have suggested that Anthony Rendon isn't going to be handed the starting third-baseman role given his struggles in recent campaigns.

FEBRUARY 7 • ROTOWIRE

Two-time All-Star shortstop Tim Anderson agrees to a minor league contract with Los Angeles Angels

Two-time All-Star shortstop Tim Anderson has agreed to a minor league contract with the Los Angeles Angels and will report to big league spring training

FEBRUARY 5 • Associated Press

Outrighted to Triple-A Kieboom cleared waivers and was outrighted to Triple-A Rochester by the Nationals on Wednesday, Mark Zuckerman of MASNSports.com reports.

Impact Kieboom is somehow still just 26 but has never come close to cashing in on the hype he had as a prospect. That he passed through waivers unclaimed shows that the Nats aren't the only organization down on him. Kieboom should play pretty regularly at Rochester in hopes of earning his way back on the 40-man roster.

MARCH 13, 2024 • ROTOWIRE

Smacks three-run homer Kieboom went 1-for-4 with a three-run home run, a walk and an additional run in Friday's 10-6 win over Atlanta.

Impact Kieboom's long ball -- his fourth of the campaign -- was one of five home runs on the night for the Nationals, tying a season high for the club. The 26-year-old has heated up with a .762 OPS over his last 10 games, but he's still been stuck in a timeshare at third base with Ildemaro Vargas as the season winds down.

SEPTEMBER 30, 2023 • ROTOWIRE

Not in Thursday's lineup Kieboom is absent from the lineup for Thursday's game versus the Pirates, Bobby Blanco of MASNSports.com reports.

Impact Kieboom was playing regularly for a while at third base after being called up in late August, but he's now started just two of the last six games and both of those came against lefies. Jake Alu is at the hot corner Thursday.

SEPTEMBER 14, 2023 • ROTOWIRE

Takes seat Wednesday Kieboom is not in the lineup Wednesday against the Pirates.

Impact Jake Alu will start at third base and bat eighth as Luis Garcia handles second base and hits sixth. Kieboom has slashed .182/.224/.364 in 58 plate appearances since being recalled from Triple-A Rochester on Aug. 20.

SEPTEMBER 13, 2023 • ROTOWIRE

Sitting against right-hander Kieboom is out of the lineup for Monday's game against the Pirates, Andrew Golden of The Washington Post reports.

Impact Kieboom will take a seat for the second time in three days while the Nationals make room at third base for Ildemaro Vargas. With Kieboom turning in a modest .610 OPS in 15 games since his call-up from Triple-A Rochester in late August and with the switch-hitting Vargas offering a potential strong-side platoon option, Kieboom could see his opportunities against right-handed pitching take a hit as the season winds down.

SEPTEMBER 11, 2023 • ROTOWIRE

Gets breather Saturday Kieboom isn't in the Nationals' lineup Saturday against the Dodgers, Mark Zuckerman of MASNSports.com reports.

Impact Kieboom will get a breather Saturday after going 0-for-14 with six strikeouts across his last four games. Ildemaro Vargas will start at the hot corner and bat seventh while Kieboom regroups.

SEPTEMBER 9, 2023 • ROTOWIRE

Rests Sunday Kieboom is out of the lineup for Sunday's game against the Marlins, Mark Zuckerman of MASNSports.com reports.

Impact Kieboom will cede third base to Ildemaro Vargas for the series finale after starting in each of the past five games. Since receiving a call-up from Triple-A Rochester on Aug. 20, Kieboom has gotten on base at a .275 clip in 10 games, but he's showcased some good power (three home runs and a double). The Nationals will likely give Kieboom an extended look as their everyday third baseman down the stretch.

SEPTEMBER 3, 2023 • ROTOWIRE

Belts third homer Kieboom went 2-for-4 with a two-run home run in Tuesday's 5-4 win over the Blue Jays.

Impact The third baseman got the Nationals on the board in the second inning, crushing a first-pitch sinker from Jose Berrios into the stands in left field. Since returning to the big-league roster Aug. 20, Kieboom has gone yard three times in six games while batting .273 (6-for-22). Washington will give the 25-year-old every chance to prove he can still be a part of the team's future after he missed the entire 2022 campaign and most of 2023 due to multiple injuries, including Tommy John surgery in May 2022.

AUGUST 30, 2023 • ROTOWIRE

Kieboom and Ruiz homer and Nationals beat Blue Jays 5-4

Keibert Ruiz hit a three-run home run, Carter Kieboom had a two-run drive and the Washington Nationals beat Toronto Blue Jays 5-4, dropping the Blue Jays 3 1/2 games behind Houston...

AUGUST 30, 2023 • Associated Press

On bench Monday Kieboom is out of the lineup for Monday's game against the Blue Jays, Andrew Golden of The Washington Post reports.

Impact Kieboom will hit the bench in favor of Ildemaro Vargas after he had started each of the past four games at third base while going 3-for-15 with a home run and a double. Though he's a few years removed from being one of the top prospects in the Washington farm system, Kieboom is still just 25 years old and could get a look as an everyday player in the infield down the stretch while the 61-70 Nationals play out the string.

AUGUST 28, 2023 • ROTOWIRE

Goes deep Friday Kieboom went 1-for-3 with a two-run home run in Friday's win over the Marlins.

Impact Kieboom's blast off of Braxton Garrett in the sixth inning wasn't a cheap one, travelling 409 feet and measuring at 104.9 mph off the bat. It's his second long ball in three games since being recalled from Triple-A Rochester. Kieboom was making his second straight start and third start in the last four games at third base. He could continue to see regular action at the hot corner with Ildemaro Vargas shifting to second base and Jake Alu to left field following the season-ending injury to Stone Garrett. Kieboom has dealt with injuries and poor performance for a few years since being considered a top prospect but is somehow still just 25.

AUGUST 26, 2023 • ROTOWIRE

Taking over at third base Kieboom is starting at third base and batting fifth Thursday versus the Yankees.

Impact Jake Alu is going to play more in left field with the Nationals losing Stone Garrett to a fractured left fibula Wednesday, which shifts Ildemaro Vargas into the bulk of starts at second base and opens up the third base gig for Kieboom. The 25-year-old former top prospect hit a solo home run Tuesday off Carlos Rodon in his first major-league at-bat since 2021. He had posted a .789 OPS with five homers and 23 RBI in 34 games for Triple-A Rochester prior to his promotion.

AUGUST 24, 2023 • ROTOWIRE

Homers in big-league return Kieboom went 1-for-3 with a solo home run in Tuesday's victory over the Yankees.

Impact In his first Major League at-bat since 2021, Kieboom launched a solo home run off Carlos Rodon to put the Nats ahead 1-0 in the third. Once a top prospect, the 25-year-old Kieboom had struggled to a .198 average in his first two big-league seasons. He'd been swinging the bat well in Triple-A, going 24-for-82 (.293) with a .814 OPS over his last 22 games, earning another look in Washington. The rebuilding Nats could give Kieboom an extended opportunity at third base down the stretch.

AUGUST 23, 2023 • ROTOWIRE

This may be Carter Kieboom's last chance. He hopes to make the most of it. During Tuesday’s win over the Yankees, the Nationals’ 2016 first-round draft pick slugged a solo homer in his first major league at-bat sinc...

AUGUST 23, 2023 • WASHINGTONPOST.COM

Called up as 27th man Kieboom was recalled from Triple-A Rochester to serve as the 27th man for Sunday's Little League Classic against the Phillies, Andrew Golden of The Washington Post reports.

Impact Kieboom returned from the injured list at Rochester in early August after missing nearly two months with an oblique injury, and he'll now have the chance to make his first MLB appearance since 2021. Since the 25-year-old is up with the Nationals as an extra player Sunday, he could be sent back down immediately following the contest.

AUGUST 20, 2023 • ROTOWIRE

Back from IL at Triple-A Kieboom (oblique) was reinstated from the injured list at Triple-A Rochester on Tuesday, Bobby Blanco of MASNSports.com reports.

Impact After six games with High-A Wilmington, Kieboom is ready to return to Rochester for his first action at the Triple-A level since mid-June. Kieboom has put together a .264/.366/.425 line with three homers and one steal in 26 games with Rochester this season. Now 25 years old, Kieboom's prospect shine is long gone, but if he proves healthy for a stretch at Triple-A, the team could give him one more look in the big leagues.

AUGUST 8, 2023 • ROTOWIRE

Begins rehab assignment Kieboom (oblique) is set to begin a rehab assignment Tuesday with High-A Wilmington, Mark Zuckerman of MASNSports.com reports.

Impact Kieboom has been on the minor-league injured list since June 20 because of an oblique strain, but he's rounding back into good health and could potentially get a look in Washington down the stretch. The 25-year-old former top prospect hasn't appeared in a major-league game since 2021.

AUGUST 1, 2023 • ROTOWIRE

Placed on minor-league IL Kieboom (oblique) was placed on the injured list Tuesday at Triple-A Rochester, Mark Zuckerman of MASNSports.com reports.

Impact Kieboom is headed for an MRI after tweaking his left oblique in a recent game versus the Triple-A affiliate of the Yankees. The 25-year-old former top prospect has also missed time this season with shoulder and lat problems. He sat out all of 2022 due to Tommy John elbow surgery.

JUNE 20, 2023 • ROTOWIRE

Returns to action Tuesday Kieboom (lat) returned to the Triple-A Syracuse lineup Tuesday and has gone 1-for-7 with a double, three walks and a run while playing in both of the team's last two games.

Impact Kieboom missed just under a week after experiencing soreness in his right lat following a May 10 contest. The 25-year-old had previously missed the first month of the season while recovering from Tommy John surgery and then tending to a shoulder impingement, but he appears fortunate to have avoided any sort of major setback.

MAY 18, 2023 • ROTOWIRE

Tending to sore lat Nationals manager Dave Martinez said Monday that Kieboom hasn't played in any of Triple-A Rochester's last four games due to lat soreness, Jesse Dougherty of The Washington Post re...

Impact Martinez revealed that Kieboom was sent in for an MRI, but the organization has yet to receive the results of his medical tests. Rochester has yet to place Kieboom on the 7-day injured list, so he's presumably being viewed as day-to-day.

MAY 15, 2023 • ROTOWIRE

Activated and optioned Washington activated Kieboom (shoulder) from the 10-day injured list and optioned him to Triple-A Rochester on Sunday.

Impact Kieboom will likely make his 2023 debut for the Triple-A club Tuesday after he wrapped up a four-game rehab assignment at Double-A Harrisburg over the weekend. He went 3-for-12 with a 4:6 BB:K during his time in the Eastern League. The 25-year-old remains on the Nationals' 40-man roster and could get a look in an everyday role at third base at some point later this season, but he'll likely need to stay healthy and enjoy some prolonged success at Triple-A before he merits a call-up. Kieboom was sidelined for the entire 2022 season while recovering from Tommy John surgery and missed the first month of the current campaign due to a right shoulder impingement.

MAY 8, 2023 • ROTOWIRE

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Two-time All-Star shortstop Tim Anderson agrees to a minor league contract with Los Angeles Angels

Kieboom and Ruiz homer and Nationals beat Blue Jays 5-4