Racing PositionsGiants catcher Murphy sidelined by herniated disk1YSources: Giants add C Murphy on 2-year deal2YM's avoid arbitration with Gold Glover Crawford5YMariners lose starting catcher Murphy to hurt foot5YReal or not? Astros' Marwin Gonzalez stays hot; bigger nets needed for fans9YBradford DoolittleRumor Central: Rockies likely to promote catcher Ryan Hanigan?9YESPN.comRockies' Gray exits with toe injury, status iffy9YRockies OF Dahl (rib) to miss home opener9Y
