Anyone who tuned in last weekend and caught Charles Oliveira‘s slick submission stoppage of Eric Wisely at UFC on FOX 2 was no doubt impressed by the rarely-seen technique.

Fortunately, Ralek Gracie and Rener Gracie happen to be SLIGHTLY familiar with BJJ and decided to share their knowledge in this MMATraining Technique of the Day where they’ll walk viewers through the Calf-Slicer as well as a few other things they may have seen on FOX/Fuel TV.