A.J. Burnett's shoulder is acting up:

Toronto Blue Jays right-hander A.J. Burnett felt pain in his right shoulder during a throwing session Sunday and was scratched from his next scheduled start, June 23 against Colorado.

"He was a little tender so he won't make that one," Blue Jays manager John Gibbons said. "We'll probably throw him on the DL. We'll know something Tuesday."

"We're not going to throw him out there if he's still feeling it," Gibbons said.

Burnett, who did not speak to reporters, is 5-6 with a 4.00 ERA in 14 starts this season. He left a start in San Francisco last Tuesday after 4 2/3 innings because of pain in his shoulder.

Burnett looked like he was pitching better than his ERA. His luck might have turned positive, but it's going to be a while before we find out.