The calf slicer, sometimes called the calf crusher or calf cutter, is a leg lock, but not one that targets the joints of the leg...
As per IBJJF rules, the calf slicer is legal for brown and black belts in both gi and no-gi tournaments...
The concept is easy – don’t allow your opponent to grab your toes...
When attacking the calf slicer from the top half guard position, you want to have your feet touching each other and then perform a forward roll over the shoulder...