Celtic defender Virgil van Dijk has sensationally claimed he was racially abused by opposition supporters during Saturday's Scottish Premier League clash against St Mirren.
The 23-year-old's allegation is being investigated by police in Scotland after an official report was lodged following the 2-1 victory at St Mirren Park.
Van Dijk believes he heard chants from the home crowd and acted accordingly, taking the gloss off the Scottish champions' performance, which gifted Bhoys boss Ronny Deila another crucial three points, courtesy of two goals from on-loan striker John Guidetti.
"Police Scotland has received a complaint from a Celtic player alleging he was racially abused by a spectator during the St Mirren v Celtic match on Saturday," a police statement confirmed, as reported by the Daily Mirror.
"Police are liaising with both clubs and are analysing broadcast and CCTV footage. Inquiries are ongoing."
The news comes amid speculation that the Dutchman is in fact unsettled at Celtic Park, after coming close to a move to the Premier League during the summer transfer window.
Premier League interest
According to the Daily Star earlier this month, Van Dijk had been targeted by Manchester United and Arsenal, when both clubs were on the lookout for central defensive reinforcements.
Neither Arsene Wenger nor Louis van Gaal successfully addressed their problems at the back prior to the transfer deadline, and for that reason are both likely to be on the lookout for possible recruits when the window reopens again in the New Year.
The Gunners sold Thomas Vermaelen to Barcelona and failed to replace him with a capable successor, meaning that youngster Calum Chambers currently finds himself as third choice centre-back at the Emirates Stadium.
Van Dijk would definitely strengthen Wenger's options were he to renew interest in the player, and might see this latest incident as an opportunity to entice him south of the border for a fresh start in another country.
Is Van Gaal a fan...?
Manchester United are likely to be monitoring the situation closely as well, with Van Gaal's defensive problems at Old Trafford - with injuries to a number of senior stars - well publicised in recent weeks.
However, it's worth noting that the Red Devils boss snubbed Van Dijk when picking his Holland squad for the World Cup during the summer, so it's not entirely clear whether the veteran coach actually rates the Celtic star.
With a valuation of around £10 million a potential transfer to England's top-flight is not beyond the realms of possibility in the mid-season window, particularly if Van Dijk's state of mind changes in the aftermath of his accusation regarding unacceptable fan behaviour.