"I'm pretty sure of that," Mattingly said. "I talked to Chad today and he felt like the biggest thing with him is that they wrapped it and I don't know if he wasn't comfortable with it, but he wasn't striding as far.
"Whatever the reason, he didn't pitch great, but from that standpoint, he's healthy and I'm not worried about his next start. He didn't come out of it limping or having something bother him. I think he put a lot of doubt to rest."
Billingsley is scheduled to start again Saturday at home against the Nationals.