is one piece episode 760 filler?

While night still reigns over the Mokomo Dukedom, Wanda continues telling the Straw Hats about the Mink Tribe's battle with Jack, revealing that it lasted five days. 17 days ago, Nekomamushi began an intense and fast-paced clash with Jack, and the mink was surprised that the pirate could keep up with his staff. He managed to get close to Jack and knock him down, although Jack retaliated by knocking the mink a fair distance back.

Jack then charged at Nekomamushi, but the mink blocked the attack by spinning his spear.