Manchester United hope full-back Luke Shaw will be able to line up against in-form Watford this weekend despite suffering concussion during the international break.

Shaw was forced off after colliding with Dani Carvajal during England’s 2-1 defeat to Spain on Saturday and is rated as a doubt for the trip to Vicarage Road although United have not ruled the defender out just yet.

Shaw may have to miss out due to Football Association guidelines regarding head injuries but United still hope he will be available.

An early team news article on the club website read: “[Manager] Jose Mourinho could be without Luke Shaw, who sustained a head injury in England’s UEFA Nations League match against Spain at the weekend.

Some reports suggest the left-back will be obliged to serve a mandatory seven-day concussion period of absence though this has not been confirmed.”

United will be without Marouane Fellaini after the Belgian midfielder sustained a back injury during the international break, while Phil Jones remains absent.

The Old Trafford outfit have endured a tough start to the season and have picked up six points in four games so far.

Mourinho’s men did manage a 2-0 win at Burnley in their last fixture and are 1.91 to claim victory at Watford on Saturday.

The Hornets, who have won all four of their league games so far, are 4.00 to come out on top and the draw is 3.50.