The second day of the UAEJJf Rio Grand Slam saw the adult black and brown belt brown belts take the stage at the Carioca Arena- and the action was non-stop.

Some of the very best athelte on the planet made their way to the birthplace of jiu-jitsu - here are some of our favorite photos from the day.

Kaynan Duarate took first place in 110kg brown belt division in dominant fashion today.  He's been on fire since Worlds where he took double gold as a purple belt.  We're certain more big things are to come. photo: Chase Smith

...and then he goes to work. photo: Chase Smith 

Isaque Bahiense had a fantastic day.  He's moving on to the 85kg  final tomorrow with 3 wins on day.  photo: Chase Smith

Ana Caroline Vieira savagely submits her opponent in the opening round of the women's brown/black belt 70kg division.  See her tomorrow in the finals. photo: Chase Smith

Jaime Canuto soaks in the victory.  photo: Chase Smith 

Gabriel Batista won a hard fought match with Jonnata Gomes to win the x brown belt final. Great scrambles from both players. photo: Chase Smith

Day 2 wasn't without it's bloody moments.  Thankfully we saw few competitors require medical attention. ˆPhoto: Chase Smith

Do not be fooled, Amanda Monteiro is a beast. Photo: Chase Smith 

Fabio Alano had a monster performance today, he ended up earning second place in the 94kg brown belt division.  photo: Chase Smith 

Gustavo Batista looked like a man possessed today.  He'll face Isaque Bahiense in the 85kg final tomorrow. photo: Chase Smith

  Felipe Trovo in-between rounds. photo: Chase Smith 

Tune in tmorrow for the black belt finals of the UAEJJF 2017 Rio Grand Slam!