Nelson to replace Peralta if blister doesn't heal

ATLANTA -- Rookie right-hander Jimmy Nelson will replace Wily Peralta on Saturday if a blister on Peralta's right index finger forces him to miss his final scheduled start.

Peralta received treatment on Monday, a day after experiencing wildness in the late stages of his five-inning outing against the Cardinals at Miller Park. Asked whether he expects to make his final start, Peralta shrugged and said, "We'll see."

"What I really don't want … is if he goes back out there and goes through the same thing he went through yesterday," Brewers manager Ron Roenicke said. "I was glad he went out there and he continued to try to pitch and get through it. But that first inning, the stuff that I saw from him, that was going to be some kind of ballgame. I mean, he came out 96, 97, 98 [mph] and I was looking at him going, 'Wow.' I really would have liked to have seen if he didn't have the finger issue what he would have done. But because of it, I don't want him to struggle with it in the next one. So, we'll figure that out."

Peralta indicated he has been battling a blister on that finger all month. In his first full season in the Major Leagues, he is 11-15 with a 4.37 ERA in 32 starts and 183 1/3 innings.

"If Peralta doesn't make it out there, I'm curious to see Jimmy Nelson," Roenicke said, referring to the 24-year-old who has made three appearances so far in a September callup.