"Jake Peavy spoke highly of Tyler Flowers before the catcher came up from Class AAA Charlotte on July 10 ­after Ramon Castro broke his right hand and index finger. The two were battery mates during Peavy's minor-league rehab starts.

Flowers will make his first start tonight, with Peavy on the mound, in Kansas City.

"I'm not worried about making an impression,'' said Flowers, who will give A.J. Pierzynski a rest against left-hander Danny Duffy. "They've seen me for a while now, in the spring and a couple of Septembers. The main goal is to help the team win. Help Jake Peavy have a good outing [tonight] and the White Sox win the game. That will say more than Tyler going 4-for-4 and not catching well.''

Flowers, 25, was batting .261 with 15 home runs and 32 RBI and ranked third in the International League in on-base percentage (.390). He was batting .354 with eight homers in his last 15 games. Catching Peavy, with whom he's familiar, is a good way to break in this season."