Conversation so far:
When did Roger Clemens return to the New York Yankees?
Roger Clemens made his 2007 return to the New York Yankees on June 9, defeating the Pittsburgh Pirates by pitching six innings with seven strikeouts and 3 runs allowed.
How did Roger Clemens perform with the New York Yankees in his 2007 return?
Roger Clemens made his 2007 return to the New York Yankees on June 9, defeating the Pittsburgh Pirates by pitching six innings with seven strikeouts and 3 runs allowed.
Did Roger Clemens play in the 2007 post-season with the New York Yankees?
Roger Clemens was forced to leave Game 3 of the 2007 American League Division Series in the third inning after aggravating a hamstring injury.
How long was Roger Clemens with the New York Yankees?
Roger Clemens was with the New York Yankees from 1999 to 2003 and in 2007. He has played six seasons with them.
Did anything exciting happen while Roger Clemens was playing with the New York Yankees during the 2007 season?
On July 2, 2007 Roger Clemens collected his 350th win against the Minnesota Twins at Yankee Stadium.

Question: Why was he forced to leave
Self-contained rewrite: Why was Roger Clemens forced to leave Game 3 of the 2007 American League Division Series?