"When the Brewers gathered for spring training in Phoenix in mid-February, manager Ron Roenicke wasn't sure what to expect from Zack Greinke.

Roenicke had heard about Greinke's social anxiety disorder and wondered whether there would be any problems with the right-hander assimilating into the clubhouse. Almost immediately, that concern was erased.

"I didn't know what kind of conversations I'd have with Zack or how he would fit in with the team," said Roenicke, who will send Greinke to the mound Sunday for Game 2 of the National League Division Series vs. Arizona. "You hear some things. Until you're with him and see how he interacts with the other players, it's hard to imagine what was going to go on."