Manchester United legend Rio Ferdinand has urged club manager Jose Mourinho to start Marcus Rashford and Anthony Martial on either side of Romelu Lukaku.

The former United skipper thinks that the front-three of Lukaku, Rashford and Martial could have a devastating effect for the Red Devils this season.

"If you look at it from a defender's perspective, Rashford gives them those legs behind," Ferdinand said.

"He runs behind defences and makes you look over your shoulder.

"It's a scary thought. Lukaku does the same.

"There is a relationship developing between those two under Mourinho - with [Anthony] Martial as well.

"I want to see Martial, Rashford and Lukaku together on the pitch.

"There's pace, drive and desire to get goals as well between them. It's exciting times."