PITTSBURGH -- The Phillies designated lefty Daniel Stumpf for assignment and called up right-hander Severino González prior to Friday's 4-0 win over the Pirates at PNC Park.
Stumpf had recently returned from an 80-game suspension for testing positive for dehydrochlormethyltestosterone, a performance-enhancing drug. In five innings this season, Stumpf allowed six runs for a 10.80 ERA. The Phillies took Stumpf from Kansas City in the Rule 5 Draft in December, so he would have to clear waivers before he can be placed in Philadelphia's Minor Leagues.
"We just didn't feel that he was, you know the timing is tough, with what happened and everything, and we needed somebody that was pitching better right now," Phillies manager Pete Mackanin said. "That's all."
From June 17-July 9, Gonzalez went 0-1 with a 3.38 ERA in 11 appearances. At Triple-A Lehigh Valley this season, Gonzalez posted a 3.31 ERA in 35 1/3 innings.