News: Harris walked two and struck out three over 1.2 innings of relief Monday against the Mariners.
Impact: Through five relief appearances, the 30-year-old right-hander carries a 0.00 ERA, 0.52 WHIP and 9:3 K:BB over 7.2 innings. Harris has only allowed one hit thus far - a single to Robinson Chirinos back on April 11.
News: Wojciechowski allowed four runs on eight hits and two walks with six strikeouts over four-plus innings Monday, but did not factor into the decision against the Mariners.
Impact: The 26-year-old took an early exit after allowing 10 baserunners in four innings in his second big league start. Wojciechowski (0-1) will carry a 6.00 ERA into his next scheduled start at Oakland on Sunday.
News: Gregerson nailed down his third save of the season Monday and second in as many days with a scoreless ninth inning against the Mariners.
Impact: Gregerson gave up a two-out walk during the appearance - only his third baserunner allowed in seven appearances this season - but it made no difference as he struck out Seth Smith swinging to end the game. The 30-year-old reliever has now pitched three consecutive days, which likely means Pat Neshek or Chad Qualls would receive the save opportunity Tuesday if it came down to it.
News: Oberholtzer (finger) threw live batting practice at extended spring training Monday, MLB.com's Brian McTaggart reports.
Impact: Now that he's been cleared to face hitters, the lefty is preparing to pitch in a simulated game by the end of the week. If all goes well during that session, he could be cleared to begin a rehab assignment at one of the Astros' minor-league affiliates in the near future.
News: Fields (groin) is slated to toss two innings for Triple-A Fresno on Monday, MLB.com's Brian McTaggart reports.
Impact: Manager A.J. Hinch said that the Astros have a plan in place for Fields after Monday's outing, but was unwilling to confirm whether or not the right-hander would be activated from the disabled list after the outing. He's expected to work in middle relief for the Astros, where his high strikeout rate could give him some value in AL-only formats.
News: Carter is not in the lineup Monday against the Mariners.
Impact: Carter has gotten off to a dreadful start at the plate as he's just 3-for-40 with no extra-base hits and 17 strikeouts, but Monday's day off appears to be nothing more than just a regular day of rest. Marwin Gonzalez will fill in at first base in his stead, batting seventh.
News: Tucker is off to a blistering start with Triple-A Fresno, hitting .350 (14-for-40) with two doubles, four home runs, and 13 RBI through 10 games.
Impact: Tucker hit seven home runs in 73 games at the Triple-A level last year, so he's obviously off to a great start in 2015. The 24-year-old primarily plays the corner outfield positions, but he can also man first base for increased versatility on defense. While the Astros have plenty of depth ahead of Tucker, he could eventually force his way to Houston if he maintains a hot bat throughout the season.
News: Santana is 8-for-37 (.242) with a triple, two home runs, four RBI, and a stolen base through 10 games for Triple-A Fresno.
Impact: Santana struck out 14 times in 18 big league plate appearances last season and is currently striking out at a 43.2 percent clip with Triple-A Fresno. While the 22-year-old outfielder certainly fits in with the Astros' all-or-nothing approach on offense, it's clear he still needs additional work at Triple-A.
News: Dominguez is 7-for-34 (.206) with four doubles and nine RBI through nine games for Triple-A Fresno.
Impact: Dominguez is a strong defender at third base who has shown decent power at the big league level, but the Astros have plenty of depth at the corner infield spots. While an injury would seemingly open the door for a promotion, it's no guarantee that the 25-year-old will see time in Houston this season.
News: Singleton is 10-for-37 (.270) with four doubles, two home runs, and eight RBI through 10 games for Triple-A Fresno.
Impact: Singleton has nine strikeouts (20.5 percent strikeout rate) but he's also drawn seven walks for a 15.9 percent walk rate. He's likely to earn a promotion to Houston at some point this season, especially if Chris Carter (.075/.159/.075) continues to struggle offensively for the Astros.
News: Nash is 9-for-37 (.243) with three home runs and 12 RBI through eight games for Double-A Corpus Christi.
Impact: Nash's power potential is obvious after he hit 22 home runs in 84 games with Double-A Corpus Christi last season, but he'll need to make better contact (65 percent contact rate) and show improved plate discipline (34.2 percent strikeout rate against a 2.6 percent walk rate) in order to take a step forward in his development.
News: Altuve extended his hitting streak to nine games with three hits Sunday against the Angels.
Impact: During the streak, Altuve is batting .385 (15-for-39) with two extra-base hits, four RBI, four runs scored and two stolen bases. The reigning AL batting champion is hitting .320/.370/.400 through 12 games for the Astros thus far.
News: Valbuena went 1-for-3 with two walks, two RBI, a stolen base and his third home run of the season in his return to the lineup Sunday against the Angels.
Impact: Valbuena, who did not play Saturday against a left-handed starter, hit out of the two-hole for the Astros on Sunday and delivered with a two-run homer in the third inning off Garrett Richards. Through 10 games, he's hit between second and sixth in the batting order with a .211/.286/.474 slash line.
News: Springer went 1-for-3 with a walk, run and his third stolen base of the season Sunday against the Angels.
Impact: The 25-year-old outfielder, who was back in the third spot in the Astros' batting order Sunday, is hitting .163/.275/.256 with a home run, three RBI, three steals and a 18:7 K:BB ratio through his first 12 games this season.
News: Sipp pitched a scoreless inning Sunday against the Angels to earn his third hold of the season.
Impact: The veteran southpaw allowed a leadoff single to Erick Aybar, who quickly advanced to second base on a wild pitch. Sipp worked around it though, striking out C.J. Cron before getting Collin Cowgill to pop out and Johnny Giavotella to ground out to end the inning. Through five relief appearances with the Astros, Sipp has a 1.42 ERA, 0.79 WHIP and 6:1 K:BB over 6.1 innings.
News: Neshek earned his third hold of the season despite allowing a home run Sunday against the Angels.
Impact: Albert Pujols took Neshek deep in the eighth inning, but the 34-year-old reliever struck out a batter during an otherwise scoreless appearance. Through six relief appearances with the Astros, Neshek has a 4.50 ERA, 0.83 WHIP and 7:0 K:BB over six innings.
News: Gregerson struck out a batter during a scoreless inning Sunday to earn his second save of the season.
Impact: Gregerson made quick work of the Angels in the ninth, needing only nine pitches (seven for strikes) to retire the side. Through six relief appearances, the 30-year-old has allowed only two baserunners with no walks and six strikeouts over six innings.
News: Feldman earned his first win of the season Sunday against the Angels, allowing two runs on six hits with no walks and three strikeouts over six innings.
Impact: Feldman (1-2) rebounded Sunday after a disastrous outing his last time out, but his five home runs allowed this season rank third-worst in baseball behind Cole Hamels (seven home runs allowed) and Brandon McCarthy (six). The 32-year-old will carry a 5.09 ERA into his next scheduled start at Oakland on Saturday.