One Piece episode 729

It aired on Sunday, 14 February 2016.

Flame Dragon King! Protect Luffy's Life!

Bounce-man's power has drained Luffy, leaving him in need of a rest before he can reuse his Haki, but luckily the gladiators from the Colosseum have come around and are focusing on taking down Doflamingo! Sabo steps in at a crucial moment to defend his brother, Luffy!