Fighting is forbidden in football, but did you know there are many professional stars who do martial arts and boxing as hobbies?

Click through the mini-gallery to the players and their hobbies!

Fans have often been left stunned by Zlatan Ibrahimovic in front of goal, and not just because of the amount of goals he's scored throughout his career, but rather by the manner in which he has scored them!

Ibrahimovic has used all kinds of kicking techniques when attempting to find the back of the net, and that is purely because the man has a black belt in taekwon-do!

Italy striker Mario Balotelli is said to be a keen boxer, while the likes of Wayne Rooney and Joey Barton did boxing as a sport when they were younger.

According to research, Manchester United defender Chris Smalling trained in judo during his teen years, while his teammate Paul Pogba is a kickboxer!

Which other footballers would you assume like fighting?