I'm forgetting since this is the first year I've watched more than 10 games of baseball... Does the roster size expand in September?

"We've seen a lot of growth," Indianapolis manager Dean Treanor said. "[He's working] on strike-zone discipline and discipline with off-speed pitches. He had some struggles early, but he's made some big strides.

"He's much more disciplined at the plate. He'll have his moments, but he has a better idea of what pitchers are trying to do to him. Lately, we've had some conversations, and he has surprised me with what his thoughts are and his approach is. And that's surprised in a great way. It's exactly what we're trying to get him to do."