He is correct?? How? Are you somehow Oda's editor? Sanji vs King based on what proof?
All we know is that Sanji and Jack are both heading to the treasure room on the second floor. Queen is also on the second floor.
You better beg that Sanji is not going to fight Jack next chapter because Sanji's chance of fighting Jack is very high. He's still got a chance to fight Queen since he's on the second floor. But King? not a fucking chance sorry. King is fighting Marco.