Chelsea and Borussia Dortmund players clashed at the end of last night's Champions League tie.
The Blues' frustrations were showing on the field as they found themselves a goal down following Karim Adeyemi's opener.
Julian Ryerson then lit the touch paper by taking out Mason Mount as the last 16 first-leg tie went into added time.
Players from both teams and even opposing coaches then began to get physical with each other as tempers flared.
Mount - who was initially fouled - received a booking for his part in the ruck and so too did Dortmund's Niklas Sule.
Chelsea take a 1-0 deficit back to Stamford Bridge after Adeyemi broke away from a corner to put Dortmund ahead.