Rennes president Nicolas Holveck has launched an extraordinary attack on German referee Felix Zwayer after the French side's Champions League defeat by Chelsea.
The visitors were harshly reduced to 10-men in the first half of their 3-0 defeat when Dalbert received a second yellow card after a block on Tammy Abraham's shot saw the ball deflect onto his raised arm.
The Brazilian had already been booked after conceding a penalty by fouling Timo Werner - who stepped up to score - and he was soon sent off after Zwayer visited the pitchside monitor before awarding another penalty and brandishing a red card for the Rennes defender.