When comedy meets tennis.

It's always a pleasure to witness the distinct collision of two opposing worlds. Like the the time Beyonce attended the 2016 Wimbledon finals. Or the stylish array of celebrities engaging in grid-iron athleticism on the court. But, this takes the crown of the most hilarious collisions we've seen in years! And it features none other than comedian Kevin Hart and tennis Champion, Serena Williams. Kevin Hart is fit, yes. But Serena is a gladiator of sorts. 

In the clip above, the tennis champ shows Kevin Hart a thing or two about planks, lunges, stretching and a few things we do not want to spoil. Check it out and enjoy!