TOTTENHAM ace Son Heung-Min is facing a race against time to be fit for the World Cup after it was revealed he will undergo surgery.
Son was forced off after a heavy challenge from Chancel Mbemba saw his shoulder clash into his face.
The pair competed for a header with the former Newcastle man coming off better and unintentionally seeing his shoulder connect with Son’s face.
And on Wednesday, Son was tested for a concussion, with the protocol dictating that if a player is found to have a concussion they must sit out for six days.
However, those early fears have been beset by the fact Son could even be a doubt for the World Cup after Tottenham released a statement confirming surgery for the 30-year-old.