Giants WR Sterling Shepard has a concussion -- his second of the season -- a source told SNY's Ralph Vacchiano.
According to Vacchiano, the expectation is that Shepard will be out for a while.
Shepard, who already suffered a concussion earlier this season, reported symptoms to the Giants medical staff when he arrived at the facility on Monday morning and is now in concussion protocol.
Shepard suffered the concussion during the third quarter of Sunday's loss against the Vikings at MetLife Stadium.
The spotter buzzed down during the game and had Shepard removed for suspicion of a concussion. He was checked out by the Giants doctors, and eventually returned to action.
After suffering his first concussion of the season during Week 1 against the Cowboys, Shepard missed Week 2 against the Bills but returned to action in Week 3.
With the Giants playing Thursday night against the Patriots, Shepard seems all but certain to miss that game. The hope is that Saquon Barkley will be able to return, but that will not be determined until later in the week.
Without Shepard, the Giants' top two receivers are now Golden Tate and Darius Slayton.