Responding to the offensive sinkhole created by the loss of Victor Martinez (DH, DET), the Tigers shocked observers by agreeing to a nine-year contract with Prince Fielder (1B, DET) this week. The bad news is that Fielder moves to a far less-friendly HR venue in Comerica Park, which deflates HR to LHBs by 11% as opposed to 16% inflation in MIL. Still, the overall hitter-friendliness of the AL and Fielder's numbers--he's averaged over 38 HR, 15% bb% and a 165 PX over the previous five seasons--make park effects almost immaterial.