Adrian Peterson ain't done with football yet ... the future Hall of Famer says he still wants to play -- and he revealed to TMZ Sports he's got his eye on joining one of the three big Super Bowl contenders this year.
The former Minnesota Vikings star -- who's training his ass off to fight Le'Veon Bell in a celeb boxing match this weekend -- said despite his newfound goals in the ring ... he's hoping someone gives him a call to play football later this season.
Specifically, the running back said he's targeting the Bills, Rams and 49ers.
"There's a couple teams out there," A.P. admitted out in L.A. on Wednesday while gearing up for his big fight night with Bell. "Buffalo Bills would be a good team. The Rams, I don't know what need they'll have at running back. San Fran would be a good look."