Daily Mail have now revealed the real reason behind the fight.
The highly rated Chelsea youngster showed off some of his cheeky skills against Fabregas during training. Musonda flicked the ball over Fabregas’ head before nutmegging him.
Embarrassed by the youngster, Fabregas reacted with a heavy challenge which sparked a disturbance in the Chelsea training ground at Cobham.
Musonda is regarded as one Chelsea’s finest young talents and the Belgian has been linked with several moves away from the club in January.
The highly talented Belgian has been compared to the likes of De Bruyne and Hazard in terms of natural talent and is expected to be given more first team chances under Guus Hiddink.
Cesc’s reaction to the nutmeg comes as a shock considering the fact that a player like him should nurture and mentor young talents around him.
The incident happened during the last few days of Jose Mourinho’s reign as Chelsea boss.