2010 in December 2010. The fight ended in doctor stoppage, Sakuraba's ear was partially ripped off. Sakuraba fought against undefeated Brazilian jiu-jitsu Black Belt Yan Cabral at Dream 17, losing via head arm triangle. This was Sakuraba's 6th loss in his last 8 fights. Rizin Fighting Federation On October 8, 2015, new Japanese mixed martial arts promotion Rizin Fighting Federation announced at a press conference that Sakuraba would face fellow Japanese fighter and grappler Shinya Aoki on the December 29, 2015. This was Sakuraba's first fight after taking four years away from the sport. Sakuraba lost the fight via TKO at 5:56 in the first round, after being taken down and receiving ground and pound. Submission grappling Metamoris On November 22, 2014, Sakuraba fought Renzo Gracie in a grappling match in Metamoris V. Renzo played defensive closed guard earlier in the match, with the two exchanging guillotine choke attempts, but he eventually flipped Sakuraba over and pinned him. However, Sakuraba resisted all of his submission attempts, and with 90 seconds left he scrambled and tried to lock a Kimura, which was unsuccessful. The fight ended in a draw. Rizin On October 15, 2017, Sakuraba fought former UFC champion Frank Shamrock at RIZIN fighting world grand Prix 2017 Autumn: Aki Jin event in Fukuoka, Japan for a grappling exhibition march at 84 kg division. The match ended with a draw decision. Quintet In April 2018, Sakuraba announced the formation of a submission wrestling promotion named Quintet (grappling). Based on five-man teams, it is fought under a kachi-nuki-shiai tournament format similar to Nanatei Judo. He competed in the inaugural event, but his team was eliminated in the semi-final round. Fighting style Sakuraba became known for a unique, unorthodox fighting style which has been described as creative and compared to "throwing all we'd thought we'd learned about martial arts on its head." He employed moves and techniques from professional wrestling, among them spinning sole kicks, jumping stomps, Mongolian chops and baseball slides. He also used cartwheels to pass guard and several kinds of confusing, often comical tricks to gain advantage over his opponent. However, his main strength was his rounded set of abilities developed from shoot-style wrestling, which included a grinding striking learned from muay thai and a brilliant catch wrestling submission expertise. He submitted important grapplers of his time like Royler Gracie, Renzo Gracie and Masakatsu Funaki by using his signature double