West Bromwich Albion have suspended the season ticket of a supporter arrested by police after being accused of racially abusing a Queen Park Rangers player.
West Midlands Police are appealing for witnesses as they investigate the incident.
It is alleged a player was racially abused from the West Stand of The Hawthorns during the first half of Saturday's Championship fixture between the two clubs.
A West Bromwich Albion statement read: "The club takes a strong stance against all forms of discrimination and will do all it can to ensure anyone found guilty of racism faces the toughest available legal punishment, in addition to a lifetime ban from The Hawthorns.