Floyd Mayweather says Gavin Long -- who went on a cop-killing rampage in Baton Rouge on Sunday -- is NOT affiliated with The Money Team ... despite the fact he posted several videos sporting TMT gear.
"Gavin Long is not member of TMT by any means," Floyd's rep tells TMZ Sports.
"Floyd doesn’t want the TMT brand to be affiliated with the violent act Gavin has caused and neither Floyd nor anyone else from TMT knows him."
"He is just a random guy who supported the brand but we don’t support him and what he did to those police officers."
Officials say Long shot 6 officers -- killing 3 of them -- during an apparent anti-cop shooting spree.
It was later discovered that Long had previously posted several ranting videos on YouTube -- and wore a TMT hat and had a TMT sticker on his chair in some of the clips.
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