When an NFL player takes a hit to the head and shows symptoms

of a concussion — such as struggling to balance as he lines back up for the next play — a medical spotter is supposed to signal to the referee to take him out of the game. That didn’t happen with Giants wide receiver Sterling Shepard on Sunday White Phil McConkey Jerseys , and the league and union want to know why.A review of the circumstances under which Shepard remained in Sunday’s loss to the Cowboys is being conducted by the NFL and NFL Players Association, Adam Schefter of ESPN reports.Shepard took a hard hit on a collision with Cowboys cornerback Anthony Brown and struggled to get up. The Giants’ medical staff appeared to be on the way to check on Shepard when he waved them off and remained in the game.It was revealed this week that Shepard did suffer a concussion and has been ruled out for Week Two. When the Giants traded for Jabrill Peppers this offseason Phil McConkey Jerseys 2019 , the general reaction was that they were making a move to replace Landon Collins at safety in their secondary.Peppers wasn’t just a defensive player in college or with Cleveland, however. He played both ways and returned kicks at Michigan and kept up the special teams work with the Browns.Peppers started every game for the Browns on defense while serving as their primary kickoff and punt returner White Mark Bavaro Jerseys , but played just under 65 percent of the defensive snaps. The Giants kept their starting safeties on the field pretty much every snap when healthy and special teams coach Thomas McGaughey said he has “no reservation” about keeping Peppers as a returner even if he’s playing more on defense.“The guy is a for-sure ball-handler,” said McGaughey Mark Bavaro Jerseys 2019 , via NJ.com. “Can make all the cuts full speed. He just brings juice.”Peppers may get a break on some or most kickoffs as Corey Coleman averaged 26 yards per return for the Giants last year, but it sounds like he’ll be continuing to be a factor as a returner in his first year with the Giants.