Sevilla sports chief Joaquin Caparros recognises it'd be in their interests not to upset Leo Messi.
Sevilla meet Messi's Barcelona this weekend.
Caparros stated: "Messi, do not upset him. Messi is like a lion.
"He must be treated carefully and you can then put your hand in his mouth without being bitten.
"But he can also tear your head off!"