- Brazilian jiu-jitsu (BJJ) is anbrazilian martial art, which has developed from judo.
- BJJ is today one of the most successful fighting style
- His popularity is caused by Gracie family, who was very successful at many fighting competions and especially at famous organisation UFC in his early years of existence. This is also reason why is sometimes called Gracie jiu-jitsu.
- Adam Piaček - He has been pracstising jiu jitsu for 7 years and he has been training people for 2 years. He is a holder of purple belt. Adam won many competitions - for example UAEJJF National Pro Germany, Czech republic championship WOW, Austria open, Stuttgart open).