Updated Sep 8, 2011 4:32 PM ET
Indianapolis Colts quarterback Peyton Manning underwent a third surgery on his injured neck Thursday morning, FOXSports.com's Jay Glazer has confirmed.
Manning underwent surgery to fuse the C-2 and C-3 vertebrae in his neck,
and is expected to miss at least two to three months.
The Colts confirmed the surgery had taken place but offered no timetable for the superstar's return.
"As previously stated on Monday, Sept. 5th, Peyton Manning has undergone further testing and consultation with several specialists regarding his rehabilitation," the team said in a statement.
"The results of these tests and the consensus of the consultations was that further surgery was warranted. Peyton has undergone this surgery today by having a single level anterior fusion. The surgery was uneventful."
As Glazer first reported, Manning was expected to undergo the procedure hours after Colts owner Jim Irsay implied on Twitter that Manning, a four-time MVP, would be out much longer than just Week 1.