Prof. Federico Tisi from Tribe BJJ (http://www.tribejiujitsu.com/site/index.asp) visited HK in Dec 2007. His concept of Jiujitsu is self defence and one of the effective martial arts in the real fight. He also experienced 2 MMA fights and both win by submission. He flows to Dela Riva or other types of guards from open guard. He taught us very nice technics and flows from this open guard position. Thanks Prof. Federico!
Movie : http://www.youtube.com/watch?v=HIX3Czf44DQ