Giants add veteran Koo to practice squad after Gano groin injury

Graham Gano’s late groin injury during pregame warmups for Sunday night’s game against the Kansas City Chiefs left the New York Giants scrambling for a reliable kicker and prompted the team to add veteran Younghoe Koo to the practice squad on Tuesday as insurance. The incident unfolded at MetLife Stadium ahead of the Week 3 matchup and forced punter Jamie Gillan to handle placekicking duties early in the game, a move that contributed to a missed extra point and further exposed the Giants’ special teams vulnerability.

Gano left the field during warmups after reporting a pull in his groin, then returned to the sidelines as trainers evaluated him. He warmed up intermittently and ultimately returned to attempt a late 25 yard field goal in the fourth quarter, which he converted but did so visibly in pain, grimacing after the kick. Gano later said he felt the pull while warming up, that trainers wrapped him up and that the team could not risk sending him out before they had a better read on his range. He added that the staff waited until halftime to determine what he could manage and adjusted his role accordingly.

With Gano initially out, Gillan — a punter with only two career field...