The injury that will keep New York Yankees first baseman Mark Teixeira out of the lineup until May at the earliest is not a wrist strain, as originally reported, but a partially torn tendon sheath that could potentially require season-ending surgery. As of now, the Yankees are still expecting Teixeira to heal without needing an operation and to rejoin the club after about 8-10 weeks of healing time. But Teixeira, who arrived at spring camp Sunday morning with his right wrist in a cast-like splint and will rehab there for the rest of the spring, raised the possibility that his absence could be longer than that.
