Former Nigeria Super Eagles captain Mikel Obi was racially abused at the weekend after Trabzonspor win over Fenerbahce on Saturday.
The Nigeria international, 32, was targeted on social media after a 2-1 victory that moved Trabzonspor above their opponents into third place.
Trabzonspor said they have filed “criminal complaints” against those responsible for the abuse.
“Racism is a shelter for [the] helpless and ignorant,” Trabzonspor said in a statement on Twitter.
Mikel’s Trabzonspor team-mate Joao Pereira said it was “sad and unacceptable”.
“Football is much bigger than the little people behind these unfortunate acts,” Pereira said in a tweet.