Angry words were exchanged between big-name players as they argued about Grant taking over from Jose Mourinho.
After training at the Cobham HQ, the Blues stars had their first group discussion with new boss Grant since Mourinho left the club on Wednesday.
Grant and first-team coach Steve Clarke talked about how to approach tomorrow's game at Manchester United.
But the meeting lasted less than 30 minutes and skipper John Terry then called the players to a private get-together without Grant and Clarke.
It was then that tempers flared and several players vented their anger at Mourinho's departure.
Arguments continued over the course of a stormy 50-minute meeting.