article_snippet: John Terry (centre) led the protests as John Terry (centre) screamed at the referee following Ibrahimovic's first-half challenge .
article_snippet: Chelsea admitted a charge of surrounding referee Jon Moss during a game against Everton earlier this month and were warned about their future conduct.
article_snippet: The Chelsea players surround referee Bjorn Kuipers at Stamford Bridge as he brandishes the red card .
highlights_snippet: Chelsea had nine players surround referee Bjorn Kuipers pressuring referee Bjorn Kuipers to send off PSG's Zlatan Ibrahimovic at Stamford Bridge on Wednesday .