An investigation into allegations of racial abuse has been opened in Serbia after Hajduk Kula coach Nebojsa Vucicevic insulted Red Star Belgrade's Senegal defender Ibrahim Gueye.
Ibrahim Gueye plays for Red Star Belgrade
Red Star called for a prompt response after Gueye and his
team-mates said Vucicevic hurled racist slurs at the player
during Sunday's Serbian first division match.
Red Star beat Hajduk 2-0 to stay 12 points clear at the top of the table.
"Our club demands that the football authorities establish whether Hajduk Kula's head coach Nebojsa Vucicevic racially abused our player Ibrahim Gueye and take appropriate action," Red Star said.
While admitting he "cursed" Gueye after a "reckless tackle near the touchline", Vucicevic denied there was an element of racism in his criticism of the defender.
"He understood very well what I said, but there was no racism involved," he said.
"I told my players several times to put pressure on the black guy, I don't see anything wrong with that."
Gueye, however, said: "It's all true, their coach insulted me racially after I tackled one of their players but I will comment no further and let the football authorities do their job."
First division commissioner Miodrag Jankovic said Vucicevic would be "punished accordingly" if found guilty.
Serbian football was rocked by two separate outbursts of racism in October.
Thirty seven Borac Cacak fans were arrested and eight are facing criminal charges after racially abusing the club's Zimbabwean player Mike Temwanjira during a first division match.
Several days later, 152 supporters of second division side Rad Belgrade were detained after shouting anti-Muslim slogans during a match against their Novi Pazar rivals.