Antonio Brown DEFINITELY ain't retiring from the NFL ... the troubled wide receiver says he still wants in the league, saying Wednesday, "I'm still the best why stop now."
The wide receiver's future has been in doubt for the past week ... 'cause after the Patriots cut him Friday -- he tweeted, "Will not be playing in the @NFL anymore."
But, his agent, Drew Rosenhaus, said Wednesday AB still wants to play ... and on Thursday, Brown echoed those comments.
"The game need me I'm like test answers," Brown said.