Szoboszlai showed a reckless arrogance with his attempted backheel inside his own six-yard area as the Reds eventually ran out 4-1 winners at Anfield.

Sunderland had taken the lead through Chemsdine Talbi’s strike and could have won it late on.

The France international struck the crucial blow which got his new team back into the match after they had conceded for the eighth game in a row.

Isaac Price drew Northern Ireland level in the first half but goals from Nadiem Amiri and Florian Wirtz settled it for Germany after the break.

The deal for the 22-year-old Germany international could potentially become a British record as there are £16m of add-ons.