Youth, Master categories of Abu Dhabi Grand Slam Rio de Janeiro see fierce competition

The Abu Dhabi Grand Slam (ADGS) Jiu-Jitsu World Tour kicked off on Friday in Rio de Janeiro, with crowds flocking to see the competition. The three-day event is taking place at the Carioca Arena, featuring 2,000 male and female fighters from around the world, with strong competitors in the junior c...