Barton was ordered to leave the training ground by manager Warburton after he clashed with a host of his teammates following the embarrassing 5-1 defeat at the hands of Celtic in the Old Firm derby last weekend.
Now the Mirror have found out through a source that Barton angered his teammates by making a host of harsh comments and then even clashed with Warburton after the Rangers boss tried to calm things down.
The source said: "Barton told some home truths and not all of the boys reacted well. One of them pointed out to Joey that they hardly lost a game last season and had been doing fine without him.
"Barton responded by saying they were playing against s*** teams in a s*** league. But he lost the plot when one of the boys said they managed to beat Celtic last season without him too - and that he hardly got a kick against them at the weekend.
"It was all getting very heated but when Warburton tried to calm it down Barton went head-to-head with him too. He left the manager with very little choice and it's difficult to see how he can come back from this now.
"Barton has not been seen at the training ground since and has been told to stay well clear until Monday morning when he'll discover his fate."