DeMarcus Cousins

There will be no MEGA-FIGHT between Charles Barkley and DeMarcus Cousins ... so says Kenny "The Jet" Smith ... who tells TMZ Sports the guys were "just playing" when they threatened to destroy each other. Here's the thing ... it didn't seem very playful when DeMarcus blasted Charles earlier this…

The first guy picked in this year's NBA Draft -- John Wall -- has more moves in his arsenal than a nasty crossover ... dude can do the "Dougie" like a frickin' pro. The 20-year-old Washington Wizards star got down with fellow NBA'ers Tiny Gallon ... and DeMarcus Cousins at the Panini NBA Rookie…