Manchester United have banned a supporter indefinitely over alleged racist abuse during Sunday's Premier League game against Liverpool.
United said on Monday that the supporter was ejected from Old Trafford and described the abuse as "completely unacceptable".
A statement from the club said: "Racism and all forms of discrimination are completely unacceptable and do not reflect the values of our club.
"Following our investigation into the alleged incidence of racist abuse on Sunday, we have issued an indefinite ban to the individual involved.
"This individual is not welcome at Old Trafford and we want to reinforce that we will continue to take strong action against anyone who we identify has engaged in racist or discriminatory abuse, either online or at our matches."
The incident at Old Trafford came on a weekend marred by a series of reports of racial abuse across the country.