The experienced midfielder and the club agreed to part yesterday.
The Bantams wanted the former Manchester City and Leicester player to sign a 12-month contract but that did not appeal to him.
The 33-year-old joined the Bantams two years ago.
Summerbee leaves
The experienced midfielder and the club agreed to part yesterday.
The Bantams wanted the former Manchester City and Leicester player to sign a 12-month contract but that did not appeal to him.
The 33-year-old joined the Bantams two years ago.