Pump valvespringfractureisanothercommontypicalfaultofemulsionpump with high pressure and largedischarge which reduces thevolumetricefficiency of emulsion pump greatly.
He has a history of injuries in that part of his body: Wright suffered from a stress fracture in his back during the 2011 season and missed time last spring, also with a side injury.
As word of the fracture trickled through the Yankee clubhouse after Sunday's 2-0 Spring Training home opener loss to Toronto, teammates crowded around the 31-year-old to offer support.