The signing comes after Giants kicker Graham Gano suffered a groin injury in warmups before New York’s Sunday night matchup against the Kansas City Chiefs. Punter Jamie Gillan, who took Gano’s place to start the game, had his extra point try blocked after the Giants scored the game’s first touchdown.
Gano later returned to kick a 25-yard field goal early in the fourth quarter of the Giants’ 22-9 loss to the Chiefs.
Koo took over as the Falcons’ primary kicker midway through the 2019 season. He became the full-time starter in 2020, which was when he earned a Pro Bowl nod for converting on a career-best 94.9% of his field goal attempts. He remained an above-average kicker through the 2023 campaign.