UEFA president Lennart Johansson and Michel Platini differ on their ideas regarding the future format of the Champions League .
He was also emphatic that behaviour on the pitch is a "crucial issue" for the game and has warned players to improve their on-field conduct.
Case in point- Chelsea vs Barcelona .
Barcelona players continually pressurised the referee during the match in the Nou Camp, while Chelsea picked up six of the 10 yellow cards .
."On the crucial issue of behaviour in the game I do think there were issues at the recent Barcelona v Chelsea match which will need to be looked at by the UEFA disciplinary bodies in relation to both clubs.",he said.