Robin Koch’s confidence “must be fragile” after conceding 15 goals in five games for Leeds United and Germany.

That is the view of former England striker Darren Bent who, speaking exclusively to Football Insider assistant editor Russell Edge, has suggested Marcelo Bielsa may need to have a chat with to the centre-back to reassure him of his ability.

Koch, who has been an ever-present for Leeds in the Premier League this season, went on international duty off the back of two successive 4-1 defeats with the Whites.

He proceeded to play every minute of Germany’s three games during the break from domestic football, including in the 6-0 thrashing at the hands of Spain.

Bent revealed how he liked to use the international breaks to boost his confidence for both club and country but suggested playing for his country may have done Koch more harm than good.

Bent told Football Insider: “I mean the Spain game against Germany was absolutely crazy and to concede so many goals, you talk 15 goals in five games, confidence has to be a little bit fragile, it has to be.

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“When you’re a centre-half you’ve got to pride yourself on keeping the ball out of the back of the net, clean sheets, things like that. The fact they keep shipping goals left and right is is crazy.

“It would be a concern bringing your international form back to your club form. It’s different when I used it as kind of a platform when I was playing for England – and that was at any age, under-21s or lower or senior team – I’d always try to carry my confidence from my club form to the internationals.

“Also, I wanted to pay for England and bring that confidence back the following weekend to my club football, it sort of bounces off each other. But when you’re a centre-half and you’re shipping goals for your club side and then you go away with your national team and concede six, it doesn’t really bode well.

“I think that’s something that the manager might just have to have a conversation with him and just address a little bit.”

In other news, the Whites have agreed terms with a “fantastic” player who will be a future star for Leeds United, according to Noel Whelan.