Rebecca

Rebecca is a gladiator in Block D at the Corrida Colosseum.

Appearance
She is an amazon-esque woman standing slightly below Luffy with long and braided hair. In her debut appearance, she was wearing a revealing chain mail bikini with a dark cape hanging from the back, as well as a metal helmet and a pair of armored boots.

Personality
Rebecca is a calm and prideful warrior that harbors a deep resentment towards Doflamingo and wishes to gain the Mera Mera no Mi to kill him. She also appears to have an appreciation for folklore or just the history of the Corrida Colosseum, as she enlightened Lucy (Luffy) upon noticing his interest in the giant statue of Kyros.

Abilities and Powers
As she wants to eat the Mera Mera no Mi, it indicates that she is not a Devil Fruit user. However, according to some of the other fighters, she is the "Undefeated Woman", implying that she has never lost a fight yet, but at the same time, it is suggested that she was bullied by Spartan.

Weapons
Rebecca wields a long medieval-styled sword that is almost as tall as her nape and a round shield on her left arm.

Dressrosa Arc
Rebecca entered the Corrida Colosseum tournament, getting placed in group D. While in the waiting area, she met Monkey D. Luffy, and, upon noticing he was admiring the statue of Kyros, told him about his legendary status. After telling Luffy about the statue, two other fighters began teasing her about how she must be happy that Spartan was already eliminated. When Luffy asked what they meant, Rebecca told him not to mind them, though she was noticeably bothered by what they said. After this, she declared that today is her only chance, and she will win the Mera Mera no Mi and with it defeat Doflamingo. She then asks Luffy what block he is in, and is happy to learn they are in different blocks. As she walks off, she tells Luffy it would be nice if they both survived the first round.

Trivia

 * Her name can be a reference to Rebecca Curci-Hickenbottom an american wrestler.