Harris (concussion) has announced his retirement from the NFL, Evan Lazar of the Patriots' official site reports.

Harris (head/neck) should be healthy before free agency begins this offseason, Jay Skurski of The Buffalo News reports.

The Bills placed Harris (concussion/beck) on injured reserve Friday, Katherine Fitzgerald of The Buffalo News reports.

Harris (concussion/neck) has been ruled out for Sunday's game against the Patriots.

Harris (concussion/neck) won't practice Thursday, Alaina Getzenberg of ESPN.com reports.

Harris (concussion/neck) won't participate in Wednesday's walk-through practice, Matt Parrino of The Syracuse Post-Standard reports.

Harris sustained a concussion and a sprained neck during Sunday's 14-9 win versus the Giants, Alaina Getzenberg of ESPN.com reports.

Harris (neck) was released from the hospital Monday and is "otherwise going to be fine" after he was taken off the field via ambulance in Sunday's 14-9 win over the Giants, Alaina Getzenberg and Jeremy Fowler of ESPN.com report.

Coach Sean McDermott said Monday that Harris (neck) has full movement in his body and is "heading in a good direction," Alaina Getzenberg of ESPN.com reports.

Harris (neck) was a full practice participant Thursday.