Indians pitcher Carlos Carrasco underwent a non-invasive heart procedure last October, something the team didn't know about until after he signed his four-year extension, according to FOXSports.com.
Carrasco also dealt with palpitations during spring training, requiring more medication to regulate his heartbeat. Carrasco said he first felt it after the season ended and was really scared to go under the knife.
"I think it's safe to say that we were comfortable that he was getting the right medical treatment and he'd be fine," Indians manager Terry Francona to the Akron Beacon-Journal. "It's not like a sprained wrist, though. It's not something you mess around with. But I think everybody was comfortable knowing how it was taken care of and what he has to do. So it's not really an issue."