Novak Djokovic ... WHAT ARE YOU DOING?!
The tennis superstar not only broke Spain's social distancing rules on Monday to play tennis -- he posted video of himself doing it!
The 32-year-old posted footage hitting balls back and forth with another man on a clay court in Marbella, Spain.
Usually, not a problem ... but Spain -- which was hit hard by COVID-19 -- has strict stay at home rules which specifically forbids tennis!
So, when Novak posted footage Monday showing a rally with another man, people were super upset!
"So happy to play on clay," Djokovic wrote .