article_snippet: Chelsea players have been widely criticised for surrounding referee Bjorn Kuipers before Zlatan Ibrahimovic was sent off for a first-half foul on Oscar.
article_snippet: Oscar is tackled by Zouma as the Blues prepare to bounce back from the Blues Premier League exit .
article_snippet: Chelsea players surround referee Bjorn Kuipers during Chelsea's Champions League clash against PSG .
article_snippet: Zlatan Ibrahimovic (right) was shown a red card for this challenge on Chelsea midfielder Oscar .
highlights_snippet: The Blues players have been criticised for The Blues players reaction before Zlatan Ibrahimovic's red card on Wednesday .
  