Wolf, 37, did not pitch last season, recovering from Tommy John surgery on his left elbow performed Oct. 30, 2012 by Dr. Lewis Yocum. It was the second Tommy John surgery of his career, also undergoing the ligament replacement surgery in 2005.
Wolf last pitched in the Majors in 2012, combining to make 30 appearances (26 starts) with the Milwaukee Brewers and Baltimore Orioles. Over the course of his 14-season Major League career the left-hander has appeared in 376 games (368 starts) with the Phillies (1999-2006), Dodgers (2007, 2009), Padres (2008), Astros (2008), Brewers (2010-12) and Orioles (2012). Wolf's 368 starts are 5th-most among active pitchers and 2,268.0 innings pitched are 6th-most.
In his career he has logged seven seasons with 30-or-more starts (last: 33 in 2011) and six seasons with 200-or-more innings pitched (last: 212.1 IP in 2011). Over a three-season stretch from 2009-2011 with the Dodgers and Brewers, Wolf combined to go 37-29 with a 3.70 ERA, while logging at least 200.0 innings and 30 starts in each season.
Wolf was an All-Star in 2003 when he went 16-10 with a 4.23 ERA in 33 starts for the Phillies. He has pitched in four postseason series (last: 2011 with Milwaukee).
He was originally selected by the Phillies in the second round of the 1997 June Draft out of Pepperdine University. With the Waves, Wolf was a three-time all-West Coast Conference selection and two-time Team USA participant.