TE Dustin Keller hurts hamstring

EAST RUTHERFORD, N.J. -- New York Jets tight end Dustin Keller (hamstring) and linebacker David Harris (sprained ankle) both left a 17-12 loss to the Carolina Panthers with injuries. Harris said his ankle was not broken and that he would be fine, while Keller returned with his right thigh wrapped to watch the final three quarters.

Tight end/fullback Josh Baker appeared to suffer a serious knee injury and will have further tests Monday.

Rookie wide receiver Stephen Hill hurt his back and came out for a play before returning to the game.

Keller and Harris are key players that the Jets can ill afford to lose, with the season opener against the Bills slated for Sept. 9.

Keller caught the first pass of the game against visiting Carolina for a gain of 15 yards. He was in two plays of the first series, but clutched his right leg on the second play and soon consulted with the trainers. He said he will have tests Monday on his injured hamstring, but he expects to play in the opener.

Keller is the longest-tenured receiver/tight end with Jets quarterback Mark Sanchez, and has been a reliable check-down option during the last three seasons.

In the second quarter, Baker collided with a defender in the end zone and was helped off the field. A replay showed a hard hit to his knee, but Baker did not need a cart.

"Thanks for everyone's prayers," Baker tweeted after the game. "My road has never been easy just another speed bump."

Harris broke his ankle at the end of 2008, but didn't express alarm as he walked out of the locker room after the game. He said X-rays were taken but they came back negative.

"Nothing to worry about," Harris said. "I'll be fine."

Information from ESPNNewYork.com's Rich Cimini was used in this report.