KG
The scouting reports on Chamberlain highlighted his power fastball (94-100), a plus-slider (85-88), a big, slow low-mid 70's curve, and a developing change up. Joba has demonstrated good command of all but his change up, and has the potential to enter the elite starter ranks with three potentially plus pitches.
http://www.projectprospect.com/profile-joba-chamberlain/
http://www.armchairgm.com/index.php?title=Joba_Chamberlain