Jack Sinclair - MLB News, Rumors, & Updates | FOX Sports

Can Sinclair become a late-inning go-to for Nats? In 2025, right-hander Jack Sinclair was invited to Nationals Major League Spring Training. He began the season in Triple-A Rochester, but wa...

OCTOBER 7 • MLB.COM

Nationals rally late for 6-5 win and sweep of Angels, who must go 7-6 to avoid first 100-loss season

Daylen Lile tripled to key a four-run rally in the eighth inning, Jacob Young and Dylan Crews added RBIs and the Washington Nationals beat the Los Angeles Angels 6-5 to complete a...

SEPTEMBER 13 • Associated Press

Collects first major-league save Sinclair earned the save in Friday's 6-5 win over the Angels, allowing one run on one hit while striking out one batter in the ninth inning.

Impact Erik Tomlin was brought out for the eighth inning, so the Nationals turned to Sinclair to protect their two-run lead in the ninth. Sinclair allowed a leadoff double to Nathaniel Lowe, who came home to score two batters later, but Sinclair secured the victory for Washington after getting Zach Neto to strike out. It was the first save of Sinclair's major-league career, and through his first five big-league appearances, he has allowed one run on two hits and three walks while striking out five across 5.1 innings.

SEPTEMBER 13 • ROTOWIRE

Alvarez shines, Nats beat Angels 6-5 despite another bullpen collapse

Andrew Alvarez pitched seven innings of one-hit ball, leading the Washington Nationals to a 6-5, 10-inning victory over the Los Angeles Angels

SEPTEMBER 12 • Associated Press

Jack Sinclair Becomes Latest Under-the-Radar Nationals Bullpen Arm to Impress Ahead of series opener against the Los Angeles Dodgers, the Washington Nationals announced that another one of their minor league pitchers w...

SEPTEMBER 5 • SI.COM

Contract selected by Washington The Nationals selected Sinclair's contract from Triple-A Rochester on Friday.

Impact Sinclair is heading to the big leagues for the first time in his career, with Max Kranick being designated for assignment in a corresponding move. Across 52 appearances in Triple-A this season, Sinclair has a 4.03 ERA, 1.36 WHIP and 74:32 K:BB over 60.1 innings.

SEPTEMBER 4 • ROTOWIRE