Maurice Edu has claimed he was racially abused by Rangers fans after Tuesday night’s Champions League defeat to Unirea Urziceni.
United States midfielder Edu, 23, watched the match at Ibrox and says he was targeted by his own club’s supporters as he left the stadium.
Edu wrote a message on his Twitter feed which read: “Not sure what hurt more: result last nite or being racially abused by couple of r own fans as I’m getting in my car.”
A Rangers spokesperson said: “Rangers Football Club condemns out of hand this moronic behaviour. The action of this individual is disgusting and completely unacceptable.
“It is extremely disappointing that people such as this attach themselves to the wider Rangers support and tarnish the image of the club and its fans.
“The club will now undertake a full investigation to identify the individual in question and take appropriate action. We would urge anyone who has information on the identity of the individual responsible to contact the club immediately.”