Manchester United and Manchester City are on red alert over Gareth Bale's deteriorating relationship with Real Madrid fans. Bale's car was attacked by fans as he left the club's training HQ on Monday morning after defeat to Barcelona.

The Mirror says Bale is now considering his future in Spain.

The Wales star moved to the Bernabeu in 2013 for a world record £85m. But Bale could head back to the Premier League this summer.

City and United are monitoring developments with bids of £90 million being prepared.