The dramatic scenes as a furious dressing-room bust-up erupted at Old Trafford after the Manchester derby can be revealed.
Players traded insults and punches as City celebrated a 2-1 win over United to go 11 points clear at the top of the Premier League on Sunday.
A bare-chested Marcos Rojo led United's players in defence of manager Jose Mourinho after he was hit on the head by a water bottle thrown from the City dressing room, igniting a brawl between 20 or 30 players and staff from both teams.
'Jose went absolutely ballistic when the bottle hit him,' a source said last night.