Alexis Sánchez walked out of training and was involved in a bust-up with angry team-mates days before being dropped for Arsenal’s trip to Liverpool.

The episode casts further doubt over Sánchez’s future, with Paris St-Germain the front-runners ahead of Juventus to sign the Chile striker this summer amid mounting concern over his failure to sign a new contract.

Wenger claimed after Saturday’s 3-1 defeat at Liverpool that Sánchez had been dropped for tactical reasons but The Daily Telegraph can reveal it came on the back of an incident that disrupted preparations for their trip to Anfield.

It is also understood that there has been a growing sense within Arsenal that their leading scorer has been behaving selfishly with so many public displays of frustration.