New York Giants cornerback Prince Amukamara will miss at least 3-4 weeks after suffering a partial tear of his pectoral muscle, sources told ESPN's Josina Anderson on Thursday.
Amukamara sat out a handful of plays after suffering the injury during Sunday night's game against San Francisco, but he returned and finished the 30-27 victory and didn't indicate any problems afterwards.
It will be a significant blow to a Giants defense that already ranks last in the league in passing yards allowed per game (304).
The Giants visit the Philadelphia Eagles on Monday night.