In the first four seasons of Jose Valverde’s Major League career, he seemingly was fighting for the closers role with the Diamondbacks.  When he would win it, injuries would take it away or a slump might have cost him the role.  In that time frame the Dominican reliever who would become known as “Papa Grande” would accumulate 56 Saves.  That wasn’t bad, but it was in 2007 where he was the undisputed closer of the team where he did more than enough to land him on this list.