Wes Welker, the formerly dominant slot receiver for Tom Brady and Peyton Manning, isn't quite ready to officially retire. By the sound of it though, Welker isn't delusional enough to believe that his return is imminent.

Welker, who remains unsigned after his last stint with an NFL team resulted in 13 catches and 102 yards, is open to joining another team if "the right situation" presents itself. Speaking with Sirius XM NFL Radio, Welker declared his chances of returning to the NFL a "small percentage."

"There's like a small percentage out there for the right situation, the right team. I would still go out there, but I think it all depends," Welker said on Sirius XM NFL Radio. "If I got a good job offer to do something else, then I'd probably go that route."

Welker, 35, said he's in good enough shape that he could join a team if he was given two to three weeks to train. But when factoring in how he performed in his limited stint with the Rams last year and his concussion history, it's tough to imagine Welker latching onto a team.

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Wes Welker failed to add much of anything to the Rams last year. USATSI

According to ESPN, Welker suffered at least six concussions in his career, including three within nine months and two within three weeks. In the past, he hadn't expressed much concern.

But Welker finally admitted that the concussion concern is real.

"It is something to be concerned about," Welker said. "It's something you definitely have to take into consideration. But at the same time, I don't have any regrets about anything -- at least not yet. It's part of the game. It's a part of the game that we love and also a part of the game that kind of sucks."

He did say, however, that he wants to find something to do to give him a routine. Coaching could, perhaps, give him that. Earlier this offseason, Welker attended some of the Dolphins' practices and acted as an advisor.

There's no doubt that he'd be able to teach receivers how to operate in the slot, because for a large chunk of time -- before age and injuries took their toll -- he was the best slot receiver in the game. From 2007 to 2012, Welker caught 672 passes for 7,459 yards and 37 touchdowns. In his career, he recorded 903 catches, 9,924 yards and 50 touchdowns.