Liverpool manager Jurgen Klopp has hinted that he may need to dip into transfer market after losing Dejan Lovren to injury in the League Cup semi-final victory over Stoke City.

The Reds were already without Mamadou Sakho and Martin Skrtel before the game and lost Lovren to a hamstring strain in the first half of the 1-0 win at the Britannia Stadium.

The only remaining fit centre-half, Kolo Toure, was struggling with cramps by the end of the game prompting Klopp to indicate a new defender could be on the agenda this winter.

"In this moment with no centre-back fit I would say it is a situation where we have to think about going into the transfer market," Klopp said.

"Two weeks ago we had three centre-backs, that's a good situation, at the start of the season we had five, now we have none."