The Giants signed Phillips (wrist) on Thursday, Ian Rapoport of NFL Network reports.
Coach Sean McDermott said Wednesday that Buffalo doesn't plan to open Phillips' (wrist) 21-day practice window before Sunday's divisional round game against the Chiefs, Alaina Getzenberg of ESPN.com reports.
Buffalo placed Phillips (wrist) on injured reserve Thursday.
Phillips (wrist) will be placed on injured reserve Thursday, according to head coach Sean McDermott, Katherine Fitzgerald of The Buffalo News reports.
Phillips (wrist) did not practice Wednesday, Alaina Getzenberg of ESPN.com reports.
Phillips (wrist) aims to be ready to suit back up if the Bills make the playoffs, Ryan O'Halloran of The Buffalo News reports.
Phillips underwent wrist surgery and is considered week-to-week, Chris Brown of the Bills Radio Network reports.
Phillips (wrist) is questionable to return to Sunday's game against the Cowboys.
Phillips (knee) is active for Sunday's contest against the Jets, Alaina Getzenberg of ESPN.com reports.
Phillips (knee) is listed as questionable for Sunday's game versus the Jets.