UEFA have handed Frank de Bleeckere the task of refereeing Tuesday's Champions League encounter between Barcelona and Real Madrid.
The Belgian's appointment unlikely to go down well with Madrid boss Jose Mourinho.
Mourinho last week accused referees of favouring the Catalan side after his team went down 2-0 to Barca in the first leg of their semi-final at the Bernabeu.
The Portuguese was enraged by the dismissal of makeshift midfielder Pepe by Wolfgang Stark and afterwards read out a list of officials he believes have made decisions which have benefited Barca in previous years.
De Bleeckere was on that list after opting to send off Thiago Motta in last season's last-four clash between Inter, then managed by Mourinho, and Barca.
Television replays later showed there had been little contact between Motta and Sergio Busquets with the Spain midfielder even peering through his fingers to see what action the referee was taking as he rolled about on the floor.
"I can't say what I feel. I only leave one question. Why?" said Mourinho on Wednesday.
"Why? Ovrebo, Bussaca, Frisk, Stark, De Bleeckere. Why to all these people. Each semi-final always brings the same.
"We're talking about a fantastic football team. So why?"
Tom Henning Ovrebo turned down a number of penalty appeals for Chelsea as Barca knocked out the London club two years ago, Massimo Busacca harshly sent off Arsenal's Robin van Persie in this season's round-of-16 clash and Anders Frisk dismissed Didier Drogba six years ago as Barca came from behind to beat Mourinho's Chelsea.
