Ideo
Ideo has the nickname Demolition Cannon and is a three-time X-ranked boxer and V2 champion of the New World’s central fighting club. Since he descends from the Longarm tribe, he has an advantage as a boxer with his extended reach.
During the fights in the coliseum, after each punch, an explosion occurs. However, it is not known how he brings about these explosions. During the tournament, it shows that he can match Sai in a fair fight.
However, Ideo could not keep up with Dellinger, a member of the Donquixote family. He lasted longer than many other fighters but ultimately had to concede defeat.
Sai
Sai is a member of the Chinjao family and, after the events in Dress Rosa, even the husband of Baby 5, a member of the Donquixote family.
His family masters the technique Hasshoken. With this technique, he can generate vibrations with his attacks that destroy equipment. This causes his opponent to lose their protection.
Another special feature of Sai is that he masters both Observation Haki and Armament Haki. His kicks are so strong that he can even split icebergs with a kick. He was even able to bend the Haki-enhanced tip of his grandfather’s head with a kick.
Hajrudin
Hajrudin is a giant warrior from Elban and plays an important role in the current arc. He is known as the strongest pirate mercenary. In the tournament at Dress Rosa, he was considered one of the favorites but had to concede defeat to Ruffy.
Due to the fact that he is a giant, he possesses immense combat power. Hajrudin uses his fists as well as his shield to destroy his opponents. He was the first gladiator to manage to defeat an officer of the Donquixote family.
It was also shown that he possesses high stamina. Although his opponent fell on him several times with a weight of 10,000 tons, the giant kept getting back up and continued to fight even with a broken arm.
