Borowski is now on the DL

"It's not like a sharp pain or anything like that," the right-hander said. "It's more a dull feeling, like you're carrying a weight around with you. I just started noticing it was taking longer to come back.

"Normally, my arm bounces right back," Borowski said. "After you throw, that night you feel sore but it's been taking longer to come back. It's not coming back 100 percent."

Lots of people have speculated that Borowski has been hiding an injury since spring training, looks like they were correct.