NBA's Moritz Wagner Shows Off Turrible Golf Swing, The Next Charles Barkley?!

An NBA player being compared to Charles Barkley isn't always a good thing -- especially when it comes to golf ... because Mortiz Wagner is giving Chuck a run for his money for WORST SWING EVER!!!

NO EXAGGERATION -- THIS DUDE IS A PRO ATHLETE AND COULDN'T HIT THE BROADSIDE OF A BARN!!!

Here's the deal ... 22-year-old Mortiz joined the rest of his Washington Wizards teammates for an outing at Top Golf in Virginia on Monday -- and saying it went poorly for Wagner is a gross understatement.

Watch the vid ...the 6'11" power forward missed so badly, he nearly took a chunk out of the floor mat ... and his Mulligan swing wasn't much better.

But, is it worse than Barkley??? Watch and compare ...

And, get this, Mo's swing was so terrible ... Wagner's ex-Lakers teammate, Josh Hart, went to social media to make fun of him.

"Bro what is this...." Hart wrote.

Wagner tried to defend his painful assault on golf balls by firing back, "This was literally my worst try. I hit that thing over the net one time I swear."

Sure, Mo ...

As for the Hart-Wagner rivalry ... the two have been good for a TON of laughs over the last year -- remember when Josh got after Mo for his Michigan ring last season?!?