Philadelphia 76ers hooper Kelly Oubre Jr. just gave the New York Knicks some bulletin board material ahead of their playoff matchup ... claiming the famous fans at Madison Square Garden couldn't give two craps about the games.
KO fired off the hot take at Sixers practice on Friday ... initially praising the diehard supporters and the basketball atmosphere in the Big Apple -- before turning heel REAL quick.
"The fans are pretty crazy," Oubre told reporters. "They have a really good culture of being wild and loving basketball to the root and the core of it.