ORLANDO, Fla. - Curt Schilling and the Boston Red Sox reached a preliminary agreement on an $8 million, one-year contract that will allow the star right-hander to return next season to the World Series champions.

The agreement provides for him to make an additional $5 million in bonuses and match his 2007 salary. The deal is subject to him passing a physical, contains $3 million in performance bonuses based on innings pitched and $2 million based on weight clauses, a person familiar with the negotiations said Tuesday, speaking to The Associated Press on condition of anonymity because the team had not yet made an announcement.

His agreement was first reported by ESPN.com.

''Talks with the Red Sox are moving,'' Schilling said in a posting on his Web site early Tuesday.