Greg Hall wants to close the gap on John Casey but is out of range. So he really leans in and feints a finger jab to gain John’s attention 

Then with slide and step footwork Greg bridges the gap with the low Roundkick to the groin. 

Then tries to follow up with a finger jab on the half beat to john’s eyes. Which john blocks. This is The P.I.A. section of the drill. 

While keeping the forward pressure on Greg traps the lead hand down and throws a punch which John blocks centreline 

 To facilitate the trap Greg uses a circling hand followed by a jerking hand and a simultaneous knife hand to the throat. This is the H.I.A section of the drill

Greg follows up by holding the back of johns’ head and dropping back and pulling johns head onto a head butt. 

Let go with one hand and finish with an elbow strike. This is the A.B.C section of the drill.