"We talked to him about it," Brewers manager Ron Roenicke said. "He actually came to us and asked if he could do it, because he's going to have a long time off in between the [All-Star break]. We really didn't want to do it [Saturday]. He said he was available.
"But Saturday and Sunday were days that we thought if we could get him an inning, we'll do it. Saturday worked out to where we needed him. He felt good after that first inning and went in the second inning. I thought he threw the ball well."
Wolf worked the fifth and sixth innings of Saturday's 6-3 loss. He gave up three hits and one run, striking out a batter.
Wolf said that following the first-inning ejection of Zack Greinke, his adrenaline began pumping in anticipation of making his way to the mound.
"They really didn't want to use me, but I kind of kept myself ready, because I thought that it was a perfect opportunity to pitch a couple of innings," said Wolf, who last made a relief appearance in 2001, getting a win in Baltimore.
"After that first inning, I felt fine," Wolf said. "I told them I could go another inning."