Former Manchester United captain Bryan Robson says the club needs to buy a new centre-half.

Robson has welcomed the full-time appointment of manager Ole Gunnar Solskjaer.

But he also wrote for the Daily Mail: "Sure, Ole has improved the defending, but we've seen the impact Virgil van Dijk has had on Liverpool this season.

"A signing of that magnitude, a commanding leader could catapult United forward.

"You can see the confidence Van Dijk brings to Liverpool's goalkeeper Alisson, his fellow defenders and midfielders.

"That's the type of player United need to sign. A strong summer of recruitment could be the making of Ole's legacy — not necessarily players in quantity, but world-class quality."