The Real Madrid defender alerted the referee, Ramon Abatti, who then performed FIFA's protocol gesture to signal alleged racial abuse. Abatti made an X gesture after being notified, which is the standard to flag a racist incident. Pachuca manager

FIFA will investigate the alleged racial abuse Antonio Rudiger received against Pachuca, and his head coach, Xabi Alonso, has offered support.

Antonio Rudiger was allegedly racially abused during Real Madrid 's Club World Cup victory over Mexican side Pachuca on Sunday, manager Xabi Alonso said. Alonso confirmed a complaint had been made after an incident towards the end of the Spanish giants' 3-1 victory in Charlotte.