Today was the first day I had heard of it, but Bonderman believes it comes from a change in grip that he made on his two-seamer back in Spring Training. He doesn’t believe it’s something that will affect his starts. He might not throw a side session before his next start Sunday at Kansas City, but he’s pretty certain he’ll make that outing.

"I’m a little concerned about it," manager Jim Leyland admitted after the game. "It’s something obviously you’ve got to get taken care of, because you can’t go through that all the time, not knowing if it’s going to irritate you."

It’s one of several concerns right now for Leyland, who’s understandably worried about Carlos Guillen’s biceps tendinitis. Guillen said his arm felt better today, and he’s doing exercises to keep strengthening it. Still, when Leyland hears about a pinching feeling, he wonders why that’s going on.

Don’t expect a switch of positions to be an option. As Leyland put it, "He’s my shortstop. If he can’t play shortstop, we’re in trouble."

He’s feeling better after his bout with a stomach virus Sunday, but Leyland wants to give him at least a day to regain his energy. It’ll probably be two days since lefty Adam Loewen is starting for the O’s on Tuesday.

Here’s the lineup:

1. Granderson, CF
2. Polanco, 2B
3. Sheffield, DH
4. Ordonez, RF
5. Guillen, SS
6. Rodriguez, C
7. Monroe, LF
8. Thames, 1B
9. Inge, 3B

Also, Mesa will head down to Toledo for a brief rehab assignment. He’ll pitch two innings or 25 pitches on Tuesday, then rejoin the club Wednesday. If everything’s all right from there, he’ll be activated.

Class A Lakeland right-hander Sendy Vasquez was suspended for 50 games today for testing positive for a performance-enhancing substance. The suspension is retroactive to last Friday. Vasquez was 0-3 through four starts with an 8.20 ERA, having allowed 25 hits and 11 walks over 18 2/3 innings. Also suspended today was former Tiger Matt Roney for what the commissioner’s office termed a "substance of abuse."