Jac Caglianone struggled in his MLB debut last season but his swing metrics hint at a better sophomore campaign. Geoff Stellfox / Getty Images The tools are new. Mistakes will be made as we try to ...

The virus Betts contracted at this time last year cost him strength and slowed his bat. He is back up to his usual playing weight this spring with his strength – and bat speed – back.

A look at five of the top free agent bats, and what their trajectories tell us about why their free agency played out the way it did. Full access to this article is for Premium Baseball Prospectus ...