A UEFA spokesman says the governing body has "no issues" with Nani's red card against Real Madrid on Tuesday night.
Manchester United were leading their Champions league last-16 tie 2-1 on aggregate when Nani caught Alvaro Arbeloa with a high foot and was sent off by referee Cuneyt Cakir.
Real went on to win 2-1 on the night and progress to the quarter-finals, and the outcome left Sir Alex Ferguson so "distraught" he delegated his post-match media duties to assistant Mike Phelan.
But despite widespread criticism of Cakir's decision in the English press, UEFA is backing its man.
The Guardian newspaper quoted a spokesman who said: "We have no problem with him.
"There are no issues for us regarding the sending off and we will wait for the official reports of the match delegate and the referee's observer, as is procedure.
"If they raise concerns then we will act. He remains on our list of officials."
Real boss Jose Mourinho did not want to comment on the decision to send off Nani after the final whistle but admitted that the game changed after United were reduced to ten men.