Vikings linebacker Ben Leber, who's set to become a free agent this off season, told NBC's Pro Football Talk that a lengthy lockout might increase Favre’s chances of returning in 2011.
"If there's one guy that can do it, I certainly think that he can do it. Whether he wants to do it, I don't know, that's up to him," said Leber.
Leber said Favre, who will turn 42 in October, has shown physically he can still play in the NFL.
"I don't know how he does (holds up physically), I'd like to know his secret," Leber added.
Farve filed his retirement papers with the NFL shortly after the 2010 season ended. Favre would be free to sign with any team.