Clay Buchholz (illness) scratched

Updated: June 23, 2012, 11:20 PM ET
ESPNBoston.com

BOSTON -- Red Sox pitcher Clay Buchholz has been scratched from his scheduled start Sunday due to illness, said manager Bobby Valentine.

The Sox announced that Aaron Cook, who was slated to start for Triple-A Pawtucket on Saturday night but was scratched, will make the start for Boston on Sunday against the Atlanta Braves.

Buchholz was not at Fenway Park on Saturday. He's 8-2 with a 5.53 ERA in 14 starts this season.

Meanwhile, outfielder Carl Crawford played his first minor league rehab game for the Gulf Coast League Red Sox on Saturday morning in Fort Myers, Fla., and went 0-for-3 with two walks, one intentional, as the team's designated hitter.

"His legs were still underneath him at the end of the game, and he felt pretty good," Valentine said.

Crawford will have an off day Sunday and DH again Monday. If all progresses, he should be able to play the field at some point in the upcoming week.

"You gotta be patient and take time and do everything the right way," he told reporters in Florida. "Things go well when you do that."

Crawford was satisfied with Saturday's progress.

"I'd like to play as soon as possible and feel as good as soon I can so I can get into the (Red Sox) lineup as soon as I can," he said.

Pitcher Andrew Bailey suffered a slight setback in his rehab throwing program, and the team has decided to slow him down a bit.

Valentine said the right-hander, who had thumb surgery during spring training, felt discomfort in his arm during his second bullpen session on Friday.

"It didn't go perfectly," Valentine said. "We are going to let him rest a little before he gets back on the mound. His arm didn't free great throwing."

Valentine said he thought Bailey's rehab program had become accelerated.

"We've decided to slow it down," the manager said. "He was a little ahead of schedule throwing off the mound. His thumb is fine."

Valentine added that the next time Bailey throws it would be on flat ground.

"We're just slowing it down a little bit. It's nothing major," Bailey said. "I threw two 'pens and just felt like I needed to throw a couple more before we take the next step. I need to be confident in letting it loose before I go face hitters, so it's nothing urgent, just gonna take some more time. It's good."

According to Bailey, he plans on throwing again Monday and admitted he felt OK after Friday's bullpen session.

"I'm still progressing every day but we were kind of ahead of schedule," he said. "We've got a lot of season left, so there's no need to go out there (and rush) because I've got to help the team (when I'm) healthy and confident. That's what I've got to do."

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