So, if the leaks are accurate, our beloved Luffy has once again lost against Kaidou.
See the full rules for examples.
Back below the island, Momonosuke is terrified to face Kaido, someone who defeated Luffy.
In One Piece, although little information has been revealed about Nika, he is revered as the Sun God, a savior, and more.
In the meantime, Luffy could gain his consciousness.
Finally, there is also an argument that Luffy actually already defeated Kaido.