Liverpool hero Jamie Carragher is yet to be convinced by Manchester United defender Lisandro Martinez.

The Argentine centre-back joined Old Trafford in a £55million deal this summer from Ajax and had a shaky first two games as United were beaten by Brighton and Brentford - though he improved in his next four after manager Erik ten Hag dropped Harry Maguire and paired Martinez with Raphael Varane.

Carragher said on the Overlap: "I think he's a good player. I wouldn't want a centre-back who was 5ft 9in in my team. I would not.

"We've had four games [of Martinez being in form]. You're getting carried away. If Odegaard scores the opening goal then you'll be saying he made a mistake. But for a defender to be 5ft 9" and play, never mind in the Premier League, at any level of football, he's got to be a good player. Because that is not normal.

"His passing is very good, he looks aggressive. He looks like a leader. He's not a bad player, but to play at that level of football at 5ft 9in - I wouldn't want to play alongside someone who was 5ft 9in as a centre back."

He added, "Think of the best centre backs to ever play. Bobby Moore, wins the World Cup. Franco Baresi, I would say he's the best centre back to every play, in my eyes.

"I didn't see Bobby Moore play but Baresi was lightening quick, amazing on the ball, he organised the whole defence and he was still 5ft 9in, 5ft 10in.

"So for Martinez to play at this level, he's obviously a good player. He has to be, because of his height. But at times, that will cost him. But if he is nine out of ten at everything else, it will compensate for being 5ft 9in. Because at times, if you are that height, you will get exposed as we saw in the first two games.

"I wasn't the biggest centre back and I found it more difficult playing against a Kevin Davies, Bobby Zamora, Carlton Cole, rather than playing against a United or Chelsea or City. Because those games were more about reading the game."