Carl Pavano will return to Minneapolis on Sunday to have an MRI on his sore right shoulder. Pavano is 2-5 with a 6.00 ERA in 11 starts this season. Since May 4, the right-hander is 0-3 with an 8.25 ERA. "I think it's just irritated, but we've got to find out where we're at because we've exhausted everything at this point," said Pavano, who has been bothered by soreness in the shoulder since spring training. "I don't think it's something that would require surgery or be career-ending. But at the same time, when you take steps to remedy something and things stand still, instead of getting better, you have to take the next step."