#1 Zlatan Ibrahimovic
Zlatan is arguably one of the best players ever to grace the footballing pitch. He is a serial winner who has won in every country and every club he has played. However, his career at Barcelona ended on a somewhat frustrating note.
The Swedish international has a big ego, and he doesn't like someone getting the better of him. His war of words with Pep during their Barcelona days grabbed headlines across the continent. It all started after Pep's first season and treble-winning campaign with Barcelona.
Pep wanted to add more big names to his side, and so Zlatan was brought in from Inter Milan, with Eto'o going the other way. However, being shifted out wide for arguably the greatest player in history, Lionel Messi, didn't go down well with Ibrahimovic. He reportedly called Guardiola a coward with no guts.
Despite the animosity between the duo, Zlatan does consider Pep a great manager.