Liverpool manager Jurgen Klopp has confirmed that striker Divock Origi has undergone surgery on a knee injury.

The Belgium international has scored four goals in all competitions for the Reds this season but has not played since December 26, when he suffered a hamstring injury against Leicester City.

Klopp revealed Liverpool opted to use his recovery time to clear up another problem the 20-year-old had, with his first-team return still pencilled in for February.

"It was not really surgery, it was a clean-up of his knee," said the former Borussia Dortmund boss.

"It was a little thing to do and we thought it was a good moment to do it – not the best of course, but because of his other injury we took the time.

"Now he is back [at Melwood] and everything is okay. He is on time and hopefully we can use him in a few weeks."