WATCH | No-look and through the legs! The most insane tennis shot you'll ever see

As the clay court season steams ahead in anticipation of the French Open starting at the end of May, the world's best tennis players are honing their skills ahead of the year's second Grand Slam.

Pedro Cachin of Argentina, currently ranked 69th in the world, is one of those players at the Barcelona Open this week.

In his match against world number five, Stefanos Tsitsipas, Cachin played one of the best tennis shots you'll probably ever see.

After being lobbed by Tsitsipas, Cachin managed to reach the ball but, with little hope of turning to hit it, played a no-look cross-court shot between his legs that beat Tsitsipas as he patrolled the net.

Tsitsipas had the final laugh, however, as he won in straight sets, 6-4 and 6-2. 

You'll have to see it to believe it, so watch Cachin's incredible shot below:

WHAT JUST HAPPENED?! ???Take a bow @pecachin1!#BCNOpenBS pic.twitter.com/YYcXc5x1sv