Wednesday's game between Chelsea and PSG saw a particularly weak performance by Dutch referee Bjorn Kuipers.
The Eredivisie official was surrounded by Blues players after Zlatan Ibrahimovic's tackle on Oscar midway through the first half, but Kuipers was already on the way to his pocket for the red card despite the tackle looking pretty much 50-50. The Dutchman would go on to miss incidents throughout the rest of the game, including a foul on Diego Costa in the PSG box and a shove by the Spanish striker on Marquinhos that would have likely seen him dismissed too.
Kuipers has some history at getting things wrong on the pitch, although it is rare that he tends to even up his mistakes within the same game.
He was one of the first to witness a Luis Suarez bite while officiating a match between Ajax and PSV in 2010. In fact, witness isn't really the right term, as he missed the coming together between the Uruguayan and Ottman Bakkal despite looking straight at the incident from a couple of feet away. Ex-Liverpool star Suarez would go on to receive a retrospective seven-match ban.
Bjorn Kuipers, the same ref who missed Suarez's bite on Bakkal & sent Markovic off for touching someone's nose. pic.twitter.com/vV15MseWRR— MrBoywunder (@MrBoywunder) March 11, 2015
And earlier this season, Kuipers sent off Liverpool winger Lazar Markovic for the slightest of touches on the nose of a Basel player during the 1-1 draw at Anfield. It was a key decision in a game the Reds had to win, coming as they trailed the Swiss side, and only managing to draw level in the final 10 minutes of the match.
Nobody says the referee's job is an easy one, but it is fair to say Kuipers has a collection of undesirable incidents go unpunished, or incorrectly addressed in matches he has officiated.
The 41-year-old referee was in charge of last season's Champions League match between Real Madrid and Atletico Madrid, but he may struggle to get such a high profile game in the near future given his performance in the melting pot at Stamford Bridge.