However, Terry Collins and Matz aren't concerned about the blister and it won't cost Matz a start.
"I used to get them when I pitched in Savannah, with all the humidity," said Matz, who made his first start Sunday since July 5. He had been on the disabled list with a partially torn lat muscle.
“It should be good to go,” Matz said. “I think it was the right move. I could have kept on pitching with it, but I think Terry made the right call and shut it down. If it gets worse, that’s when there’s trouble.”