Real Madrid defender, Antonio Rudiger, has accused Pachucas Gustavo Cabral of using racist language at him.
The incident happened on Sunday, during Los Blancos 3-1 victory at the Club World Cup.
This led to referee Ramon Abatti Abel activating FIFAs anti-discrimination protocol.
During stoppage time of the match in Charlotte, Rudiger who has come on as a substitute, approached Abel following a verbal exchange with Cabral.
According to the Daily Mail, Cabral is alleged to have called Rudiger a negro de mierda - which means fing n in Spanish.
