Morneau missed the remainder of the 2010 regular season with the effects of post-concussion syndrome. After the Twins clinched the American League Central Division championship, Morneau said that he was finally symptom-free. Morneau said he would be unavailable for the ALDS, but that he hoped to be available for the ALCS should the Twins advance. On October 4, 2010, the Twins announced that Morneau would not return for the 2010 season, regardless of how far the team went in the postseason.