Rory McIlroy appears to make offensive gesture towards the crowd at Ryder Cup

It is currently not known what provoked the gesture.

Rory McIlroy appeared to get angry with the crowd at the Ryder Cup (Mike Egerton/PA)

Rory McIlroy appeared to make an offensive gesture towards the crowd on the opening day of the Ryder Cup.

The Northern Irishman was seen raising a finger on his left hand as he walked off the 11th green during his afternoon fourballs match.