INDIANAPOLIS - Eric Decker assured reporters his knee injury isn't serious. At least, he doesn't think so.

His presence in the visitor's locker room was a welcome sight for worried teammates, after he was forced to leave early in the fourth quarter of the Jets' 20-7 win over the Colts on Monday Night Football.

"I don't think it's surgical though, so I don't think it's too serious," Decker said of his injury, which occurred after Colts cornerback Jalil Brown fell on top of him on a deep-ball incompletion thrown by quarterback Ryan Fitzpatrick with 14:20 left in the game,

After the play, Decker went to the locker room and did not return.

He said team doctors "think' he injured the posterior cruciate ligament in his left knee. But he'll undergo an MRI on Tuesday, according to Jets coach Todd Bowles.

"I landed goofy on it," Decker said of his knee. "[The defender] landed on top of me, so I hit my knee and then, obviously, the pressure as well from him landing on me."

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Decker said he didn't feel anything "pop."

"I actually came to the sideline and I didn't feel anything," he said. "And then I tried to run and to just kind of hurt. I pulled myself out."

Decker had a huge first half for the Jets, catching eight passes for 97 yards. But he disappeared in the third quarter before getting injured.

The receiver, who dealt with a lingering hamstring injury last season that forced him to miss a game, said he'll be cautious with his latest injury.

"I'm going to be smart about it this time around," he said. "I'm not going to try to rush myself back. Obviously, I want to be out there as soon as possible. But I'll take the proper steps -- whatever that is -- for this injury.

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" . . . All the tests they did, the knee held up fine. It's just they're just a little [leery] of certain tests and I guess that's why the MRI will show more of an answer."