Jameis Winston's Teammate -- Accuser Is a Liar ... She Wanted Sex [Video]

TMZ Sports has obtained VIDEO of Jameis Winston's teammate telling investigators that the FSU star's accuser was LYING about rape ... and the footage is compelling.

Ronald Darby, who claims he was in the apartment at the time of the alleged rape, spoke with cops last month to recount his side of the story ... and it's clear he doesn't believe Jameis did anything wrong.

"She wanted to have sex. Jameis isn't gonna take fighters, he don't have to do that."

At one point, Ronald turns to his attorney and says, "That girl lying. I don't know why she lied."

On the other hand, the woman who initially called 911 on behalf of the accuser also spoke with investigators and said the accuser was frantic on the night of the incident.

She also claims the accuser was initially afraid to tell her parents about the incident because she was afraid they would be mad at her for boozing underage.

Ultimately, the State Attorney decided NOT to file charges against Jameis, citing lack of evidence.