Ross Wolf will not have an easy task in his first Major League start.
The 30-year-old, who has 25 big league appearances but none in a starting role, will face the Athletics, who have won five straight games and are going for a series sweep of the Rangers on Wednesday afternoon. Wolf will be starting in place of Nick Tepesch, who was scratched from the start with a blister on his right middle finger.
A 6-foot right-hander, Wolf has been a part of five organizations and spent nearly his entire 12-year professional career in the Minors. He debuted for the Marlins in 2007, and after 14 games, he did not throw another Major League pitch until 2010, when the Athletics called him up.
Wolf has not had much success in the Majors, surrendering 22 earned runs in 25 innings. However, he has been impressive this season for Triple-A Round Rock, with a 1.85 ERA in six starts.
"He's one of the hottest guys down there," manager Ron Washington said of Wolf. "We're going to give him a chance while he's throwing the ball well and hope he can continue it."
Athletics: Parker looks for more success against Texas
Only four active pitchers have at least three wins and an unblemished record against the Rangers. One of them is Jarrod Parker, who will start for the Athletics.
Parker has won each of his three career starts against the Rangers, and has allowed just six runs in those three outings. The Rangers have managed just 12 hits in 20 innings against Parker, and their hitters have struck out 20 times against the right-hander.
"He's a very good pitcher. He can spin the breaking ball, throws strikes and changes speeds," Washington said of Parker. "He's tough, very tough. His changeup is his masterpiece. It's one of those that you know is coming and you still can't do anything with it. His changeup is superb, and he's not afraid to throw it."
In nine starts this season, Parker is 2-5 with a 6.04 ERA, 35 strikeouts and 24 walks.
Rangers: Profar likely to get the day off
Top-rated prospect Jurickson Profar will likely get a day off Wednesday after two straight games in the starting lineup.
Washington noted that Profar and Leury Garcia would split time at second base, and the Texas manager said Garcia was expected to be in the lineup Wednesday. Profar recorded his first Major League hit of 2013 in a 1-for-3 performance Tuesday night, after he went 0-for-2 with two RBIs in the series opener.
The highly touted 20-year-old infielder had a short stint with the Rangers at the end of last season, but hit just .176 in nine games. He was hitting .278 at Round Rock this season, before being called up to help fill in for Ian Kinsler, who recently landed on the disabled list with a strained muscle in his right rib cage.
• The Athletics have limited opponents to a total of just seven runs during their five-game winning streak.
• A.J. Pierzynski returned to the Rangers' lineup Tuesday after missing two weeks with a strained oblique. The catcher went 1-for-3 with a strikeout in his first game since May 5.