And that's why all three are garbage characters
I hope Sanji's Diable Jambe isn't something related to his genetic modifications, the rest was pretty obvious it was going to come up eventually.
Sanji's goals doesn't include being the "best kicker in the world" or something, he just fights cuz he is skilled and his personality always asked for it because of the ideals he wants to protect/preserve, and he has a lot of pride for Zeff being his father and for learning from him basicly everything he knows, from his fighting style to cooking