Manchester United's new kit deal with Adidas could be slashed by a third if Louis van Gaal cannot get them back into the Champions League.

It has emerged that Adidas have inserted a clause in the €75 million a year deal that will allow them to trigger a 30 per cent reduction if United do not qualify for the Champions League by the the end of the 2016-17 season.

Man United missed out on all European competition after a disastrous campaign last season.