Alexis Sanchez was involved in a training ground row with Manchester United academy graduate Mason Greenwood.
According to The Sun, Sanchez was fouled by the youngster during one of the training earlier.
He was left out of the squad against Chelsea but he is back in training following the hamstring injury sustained in Copa America.
The Chilean is desperate ti re-build his fitness and to get up to speed.
But since his arrival from Arsenal he can’t succeed and his future at Old Trafford has increasingly been on doubt.
Goal.com reports that Roma are interested in Sanchez but if a deal can’y be worked out, then the Chilean could find himself playing with United’s reserve side.