Oberholtzer (finger) was placed on the 15-day DL Wednesday, the Astros' official website reports. Oberhotlzer's DL stint will be backdated to March 30, allowing him to return as soon as the second week of the season. The 25-year-old left-hander recently overcame a minor lat strain, but is now dealing with a blister on his left index finger. Oberholtzer struggled during Grapefruit League play (7.56 ERA) and went 5-13 with a 4.39 ERA for the Astros last season.

Oberholtzer (back) threw 46 pitches in a minor league game Wednesday and is expected to return to Grapefruit League action Monday, Evan Drellich of the Houston Chronicle reports. Oberholtzer was able to get through two innings of minor league action in his first appearance since being shut down last week with mild back soreness. If he's able to make his scheduled start in Grapefruit League play Monday, he should be on track to be ready by Opening Day.

Oberholtzer threw a 35-pitch bullpen session Sunday, and remains on track to be ready for Opening Day, the Astros' official site reports. Oberholtzer is scheduled to pitch in a minor league game Wednesday as well; the last step before returning to major league games. Assuming all goes as planned, he should be good for his first turn in the rotation. However, another setback could compromise that.

Oberholtzer (back) will throw a bullpen session Friday, Jose de Jesus Ortiz of the Houston Chronicle reports. Oberholtzer has missed his last two starts due to a lat strain, but he appears to be moving along as expected. A further update regarding his status in advance of Opening Day should be available following Friday's session.

Oberholtzer will be sidelined for a week with mild back soreness, Brian McTaggart of MLB.com reports. Oberholtzer will still be able to play catch over the next week, so the issue doesn't look to be anything serious. However, it's certainly something to keep an eye on as Opening Day approaches.

Oberholtzer will start the Astros' second Grapefruit League game Friday against St. Louis, Brian McTaggart of MLB.com reports. Oberholtzer posted a disappointing 5-13 record and a 4.39 ERA in 2014, but a 3.62 FIP suggests he was a bit unlucky last season. The 25-year-old southpaw is likely to open 2015 as the No. 4 starter in Houston's starting rotation.

Oberholtzer dropped his ninth decision Sunday, allowing three runs on 10 hits with six strikeouts over 6.2 innings against the Indians. Oberholtzer (4-9) lines up to face the Rangers for his next scheduled start on Friday.

Oberholtzer didn't factor into the decision Tuesday against the Yankees, yielding four runs on seven hits and a walk with seven strikeouts over 5.1 innings. In 18 starts with the Astros this season, Oberholtzer is 4-8 with a 4.01 ERA, 1.33 WHIP and 73:23 K:BB through 110 innings. He lines up to face the Indians for his next scheduled start on Sunday in Cleveland.

Oberholtzer took his eighth loss of the season Wednesday afternoon despite pitching seven strong innings of one-run ball against the Twins. Oberholtzer (4-8) allowed six hits, struck out four and didn't walk a batter in the game, but the Astros' offense could only muster a single run in support of the southpaw. Oberholtzer has given up two earned runs or less in seven of his last nine starts, but only has three wins to show for his efforts. He'll carry a 3.87 ERA into his next scheduled start against the Yankees on Tuesday.

Brett Oberholtzer picked up his third win after allowing three runs in 6 2/3 innings Monday against the A's. Oberholtzer has given the Astros three straight quality starts, though the win tonight was his first since May 30 (he went on to spend most of June in the minors). He's back looking like a legitimate AL-only option, though he's not to be touched in mixed leagues.