Seahawks coach Mike Holmgren removed all doubt Wednesday: NFL MVP Shaun Alexander will play in Sunday's conference championship game against Carolina. The league rushing champion sustained a concussion last Saturday in the first quarter of Seattle's win over Washington. Alexander later said he was unconscious initially and then "out" of it for about 20 minutes. But Holmgren said Wednesday the All-Pro back will be ready for the Panthers. "Shaun's full go," the coach said. "He passed some tests we gave him yesterday. He participated in our walkthrough this morning. He's going to be fine." Alexander, who rushed for a team-record 1,880 yards in the regular season, joked he learned something about himself over a four-day battery of doctors' tests.