Jamie Carragher slams the 'one player who has got worse' under Ruben Amorim after Man Utd defeat against Newcastle

Jamie Carragher has slammed one particular player during his post-match analysis of Manchester United’s 2-0 defeat against Newcastle at Old Trafford on Monday.

Carragher, 46, did not hold back when discussing the result on Sky Sports with presenter Dave Jones.

Eddie Howe’s side outplayed Ruben Amorim’s team and went two up within the first 19 minutes of proceedings, with Alexander Isak and Joelinton both getting on the scoresheet.

In the 33^rd minute, Amorim, 39, made the drastic decision to withdraw forward Joshua Zirkzee to the bemusement of the fans gathered inside Old Trafford.

Zirkzee, 23, was replaced by Kobbie Mainoo and instantly walked toward the tunnel before returning to the United dugout with a drink in his hand shortly after.

And despite the poor showing from the majority of United’s players on the night, Carragher focused on one player in particular when speaking on Sky Sports’ MNF.

“Again, I go to [Lisandro] Martinez, he can see Joelinton,” said Carragher when analysing Newcastle’s second goal.

“Martinez, for me, when he first came in, I was very strong on the fact I thought he was too small to play centre-back in a back four in the Premier League.

“And you know what? He proved me wrong to a certain extent, and it didn’t happen too often [Martinez getting exposed in the air], and he actually played really well under Erik ten Hag.

“But I actually thought a perfect system would be a back three, where he’d have the security of two bigger players [next to him].”

Lisandro Martinez failed to impress Jamie Carragher (Credit:Getty)

“He looks worse in a back three, or he certainly looks worse under Ruben Amorim,” Carragher explained.

A video of Joelinton’s goal followed, and the former Liverpool defender voiced how he felt Martinez had “to be more aggressive” after he was out jumped by the Brazilian, who headed past Andre Onana to register the Magpies’ second goal of the game.

The defeat sees United stay in 14^th place after 19 games, just seven points off Ipswich Town in 18th, who beat Chelsea 2-0 this evening.

And things could get worse for Amorim’s side this weekend, as they travel to Merseyside, where they will face league leaders Liverpool at Anfield on Sunday afternoon.