and yes Mr. Joseph Kristoffer Prostrero, a registered nurse is a certified BJJ Blue belt
He earned his blue belt in BJJ under Rafael de Oliviera Haubert, 3rd dan black belt, who is under Mario Sperry.
He competed at
Abu dhabi open cup,
World proffesional jj cup, (world ro)
Emirates super cup..
The llatest competition was the Emirates Super cup held at Abu Dhabi combat club gym, a 2 day tourney, blue belt category, 80kg below with 16 competitors.
1st day he won the bronze for no gi.
2nd day he won 3rd place with gi competition
More power to you JOSEPH good job and keep making Davaoenos proud!!!!