Giannis Antetokounmpo Loses Temper W/ 76ers Workers, Knocks Over Ladder

Giannis Antetokounmpo wanted to practice free throws after his Bucks squad lost to the 76ers ... and when several arena employees got in his way, he lost it, knocking over a 10+ tall ladder.

And the whole incident was captured on video by some fans who were still in the Wells Fargo Center Friday night in Philadelphia.

The Bucks lost to the Sixers, 110-102 ... and Giannis dropped 25 points. But, he was awful from the free throw line, shooting 4-for-15 (27%) from the charity stripe.

So, after the game, Antetokounmpo clearly wanted to work on his free throws. But, several employees (unclear if they're with the arena or team) were standing next to a large ladder, seemingly about to do something to the hoop.

Giannis walked up to the ladder and pushed it under the basket. A worker, appearing confused, moved the ladder back near its original spot. Antetokounmpo, clearly pissed, approached the ladder again, emphatically yelled something to the guy, and tossed the ladder, causing it to fall.

The video ends a few seconds later as GA is putting up a free throw.

Another video on social media appeared to show Sixers forward Montrezl Harrell's reaction to Giannis ... and he was hot.