Abigail Ratchford: I'm Not Banging Johnny Manziel ... 'We're Just Friends'

More bad news for Johnny Manziel ... first he was cut by the Cleveland Browns ... and now one of the hottest women on earth, Abigail Ratchford, says the two are NOT getting down.

The "banging or not" rumors started earlier this week when Johnny was seen leaving an L.A. club at 2:00 AM with Ratchford in tow ... making some think there was a new celebrity couple in Hollywood.

Well, we spoke to Abi ... and she tells TMZ Sports her and Johnny's relationship is just like his current NFL career ... no one is scoring.

"He's a nice guy, really funny we're just friends, though."

Check out who Johnny is playing innocent games of Monopoly with in the gallery below.