The Boston Celtics announced Saturday that forward Jeff Green will undergo surgery next month and will miss the entire 2011-12 season.

A routine physical administered after Green agreed to a one-year, $9 million contract with the Celtics last week detected an aortic aneurysm.

After consulting with leading cardiac specialists, the decision was made to completely repair Green’s condition, and doctors indicated to him that he should be able to resume his basketball career during the 2012-13 season.

Ainge speaks: “While we are saddened that Jeff will not be able to play this season, the most important thing is his health, and we were fortunate to have access to an amazing team of specialists to evaluate Jeff’s case,” Celtics president of basketball operations Danny Ainge said. “The entire Celtics family supports Jeff during this difficult time in his career.”

Moving forward: Green’s contract is expected to be voided because of the failed physical, but the Celtics retain their rights on him when he returns.

“Thank u everyone for ur thoughts and prayers,” a post on Green’s Twitter account read. “…much appreciated love u all..and I’ll be back soon stronger and better than ever I promise.”

Green will undergo surgery Jan. 9 at the Cleveland Clinic. At the request of Green, the team declined all further comments on the situation.