PHILADELPHIA (973espn.com) - Eagles slot cornerback Patrick Robinson is in the NFL's concussion protocol after leaving Sunday's win over the New York Giants in the third quarter.

Robinson was down on the turf for a significant period of time before finally walking off and heading directly inside. He did not return but did look well after the game when spotted by 973espn.com walking through the team's locker room.

Robinson's absence had a domino effect in the secondary with veteran safety Corey Graham replacing him in the nickel defense and playing a season-high 54 snaps. Graham played on the back end and was in coverage when Eli Manning sailed a pass past rookie tight Evan Engram in the back of the end zone on a fourth-down play in the waning moments of the fourth quarter, essentially sealing Philadelphia's 34-29 win.

With Graham at safety next to Rodney McLeod, Malcolm Jenkins moved down to play in the slot. Hybrid corner/safety Jaylen Watkins also got a few reps as well.

Rookie corner Rasul Douglas was inactive for the game.

The Eagles have an extra day to work with this week when it comes to getting Robinson through the concussion protocol as they do not play again until Monday night (Christmas Day) against the Oakland Raiders at Lincoln Financial Field.

-John McMullen covers the Eagles and the NFL for 973espn.com. You can reach him at jmcmullen44@gmail.com or on Twitter @JFMcMullen