Manchester United are scouting Celtic fullback Kiernan Tierney, it has been confirmed.

Former Hoops defender Mo Camara has revealed he's been scouting for United.

He stated to the Scottish Sun: "I do some scouting for Manchester United and scouted for Sunderland and we followed Kieran Tierney loads.

"He's a very good left-back – he will go for big money if and when Celtic decide to sell.

"It's one of those where the fans, manager and the chairman – none of them will want Tierney sold.

"But in Scotland, the English Premier League's next door and everyone wants to be there. At some point the player and club will have to see a move as a possibility for him.

"He'll want to test himself at a high level. He'd definitely be playing for a top five or six team in the Premier League."