One alarming concern for the Chicago Cubs is a bone chip in Jon Lester's throwing elbow.
On Friday, Lester said it's been a "non-issue," according to Gordon Wittenmyer of the Chicago Sun-Times:
It's just a matter of hopefully it stays put, and we don't have any worry about it. And then if it does become a concern, if I start having inflammation or missing starts because of it, then that's when we'll probably sit down and talk to somebody about getting it removed.
As of now, knock on wood, I haven't had any concern with it.