Maehl did not record a catch and had zero targets. Cooper did not record a catch and had one target.
Maehl was acquired during training camp and wasn't involved in the offense until late in the preseason. Kelly was familiar with Maehl because Maehl starred for Kelly at Oregon, and the Eagles kept him on the 53-man roster.
Kelly called Maehl the Eagles' fourth wide receiver, and Maehl can play all the receiving spots. Kelly said the receiver also does well as a blocker, which is a strength of Cooper's game.
"I'm excited to see where Jeff continues in his development, where it may be," Kelly said. "I don't know exactly where it gets him, but if he keeps practicing well, we need to find ways to get him on the field even more, whether it's the slot, outside, inside."
Kelly said the Eagles must continue to monitor safety Patrick Chung, who missed two consecutive games because of a shoulder injury. Kelly said Chung is improving and has his strength back in his shoulder.
"It's a matter of how he functions and carries himself around the field," Kelly said.
DeSean's return role
DeSean Jackson remains an option in the punt-return game even though Damaris Johnson was on the field for all seven of the Giants' punts Sunday, including those on the Giants' side of the field.
"It just really depends on where it is and depends on where DeSean is and how many reps he's getting, how does he feel," Kelly said. "We'll use him again this season."
Kelly said the Eagles also will consider the punter. If it's a punter who "booms" the ball, Kelly said, Jackson will get a chance.
Kelly on Lavy firing
Kelly, who was hired in January, is the longest-tenured coach in Philadelphia now that the Flyers have fired Peter Laviolette. Kelly knew Laviolette and called him a "good guy," and he also pointed to Miami (Ohio) football coach Don Treadwell's dismissal on Sunday.
"It's kind of the crazy reality of what we deal with, but it's unfortunate," Kelly said. "I think as a coach you understand that it's a possibility going in, but it's still tough. . . . It's the reality of our profession, and it's unfortunate. You feel for the guys and you feel for their families."