Roberto Martinez has given a glowing appraisal of the Bosnian's recent performances.
The young midfielder was in fine form during the Blues's 1-1 draw with West Ham United in the FA Cup on Tuesday night, and that performance has earned the praised of his manager.
“Mo is still a player that brings a smile to your face with every performance,” Martinez is quoted as saying by The Liverpool Echo.
“He plays with bravery, he is fully committed from the start but then he has got this outstanding ability. He is a typical, typical Everton player and someone who is going to become very important for us.”
The former Ferencvaros midfielder is expected to start against Manchester City on Saturday, but Martinez has no plans to use him to man-mark David Silva because of strength the champions have throughout their side.
“When you play against Manchester City you need to be solid as a team because if you man mark someone then the other nine are capable of hurting you,” said Martinez.
“Playing at Goodison we need to be a solid team that can defend well but a team that can attack well as well.”
Besic performed a similar task against Barcelona forward Lionel Messi during the World Cup, with only a late moment of magic from the Argentine sealing the victory for his country.
It was that performance that arguably brought him to the attention of Martinez and sealed his £4m to Goodison Park following the tournament.
Everton host City looking to end a run of four straight Premier League defeats and change their fortunes following a dismal start to the season that sees them sitting just four points clear of the relegation zone.