Davis did not accompany the team on its just-completed road trip. After a check-up on Thursday, he was cleared to play catch, and did so on Friday, Saturday and Sunday. He followed Sunday's catch with a very light workout and felt fine most of Monday before experiencing chest pain at night.
He's not sure when he'll see the doctor next, or when he will be able to return to the mound.
"I wish I could give you a time frame," Davis said. "I wish I had a time frame myself. My wife, my kids, everybody wishes that. It all depends on symptoms."
With Davis sidelined, left-hander Manny Parra will remain in Milwaukee's starting rotation, manager Ken Macha said. Parra's next scheduled start is Saturday against the Mets.
In other injury news:
The Brewers expected to get more information Tuesday evening about two other players on the 15-day disabled list. Catcher Gregg Zaun declined to answer questions about his strained right shoulder until after his visit with Dr. William Raasch before Tuesday's game, but Macha said, "it appears that he is going to be on the DL for a while."
Reliever LaTroy Hawkins said strength tests have shown improvement in his weak right shoulder. He has not pitched since May 5.
"I'm getting there," Hawkins said.
Outfielder Jody Gerut was scratched from Sunday's lineup in Minnesota with a bruised left heel. He was injured the day before, when he arrived in the middle of the Brewers-Twins game after missing two days to attend the birth of a child and was inserted in place of injured Joe Inglett. Gerut was hurt running to first base on a ninth-inning single, but given the team's decimated bench, he continued to play the rest of the game, won by the Twins in 12 innings. On Tuesday, Gerut was walking with a noticeable limp.
Inglett, who sprained his left ankle sliding into home plate in the fifth inning of that game, said he was ready to play if called upon Tuesday night.