This week we take a look at an exciting match between Robson Moura and Sim Go. This match took place at the 10th Arizona Grappling Challenge October 6th, 2007. Moura, the 4-time Light Feather IBJJF World Champion, spends much of the match battling Go’s tricky deep half-guard. The match is an excellent display of the technical abilities of both grapplers.