Racing PositionsZola: Why middle relievers can be valuable2dTodd ZolaRelief Efforts: Top 30 holds options2dTristan H. CockcroftBell: 2012 preseason injury watch -- Relief pitchers2dStephania BellD-backs RHP Nelson exits after line drive to arm2hFantasy baseball pitcher rankings, lineup advice for Friday's MLB games8hTristan H. CockcroftPirates' Chapman gets 2-game ban for tantrum9hYanks claim Trammell off waivers from Dodgers10hLeiter roughed up in debut, but Rangers hold on8hRed Sox's Devers has bone bruise; O'Neill hits IL5hFantasy baseball: Weekend preview April 18-2115hTristan H. Cockcroft, Eric Karabell