Geno Smith had just completed a short touchdown throw to wide receiver Jeremy Kerley. No big deal to most everyone at SUNY-Cortland yesterday — except defensive lineman Muhammad Wilkerson.

To everyone else it might have been one of a number of easily forgotten plays during training camp. But to Wilkerson allowing a touchdown during the goal-line drill was unacceptable and he let cornerback Darrin Walls know it.

“C’mon man we can’t have that” Wilkerson barked at Walls.

Wilkerson made no apologies for getting on his teammate.

“We know nobody’s perfect” he told The Post. “But at the end of the day you don’t want to give up touchdowns and first downs. We’re a team and we’re out here to have fun but we’re competing. I don’t want any touchdowns allowed. We want to try to practice perfection.”

It’s an example of the leadership role Wilkerson has assumed after the departures of such players as Mike DeVito Sione Pouha Bart Scott Bryan Thomas and Darrelle Revis. Wilkerson is just 23 but in his third NFL season after being a first-round draft pick in 2011. He knows he must grow up fast this season.

“We had some great veterans who are no longer with us on the defensive line” Wilkerson said. “It’s my time to become a leader and I’m up for the challenge. I’m confident in myself and my game. I’m glad I have the coaches here who have big expectations of me and allow me to be on the field.”

Now that Revis is no longer with the Jets Wilkerson could be the best player on the team. At 6-foot-4 and 315 pounds he has been impressive in training camp working alongside first-round pick Sheldon Richardson and third-year player Kenrick Ellis. Quinton Coples has been moved from defensive line to linebacker but stills sees action along the defensive front.