- 'I'm there to be the No.1," says Zlatan Ibrahimovic
- Swede, 34, linked with move to Man Utd
- Starred for some of world's biggest clubs
- Will lead Sweden at Euro 2016
(CNN)He's one of the most famous footballers in the world -- and there's a reason for that, according to Zlatan Ibrahimovic: an obsession with being the best.