Liverpool manager Arne Slot has revealed that Alexander Isak is 100 percent ahead of their clash against Manchester United.

The Swedish international is yet to open his account for the Reds in the Premier League since his £120 million move from Newcastle United on deadline day.

The 26-year-old has only made three appearances in the league for Liverpool, having missed five matches.

However, Slot has confirmed that Isak is fit and ready for their mouth-watering clash against their arch-rivals.

“Fitness-wise he is close to the level he should be and we can judge him in a fair way from now on,” Slot said.

“The first five or six weeks, of course we had the player we signed but he was not completely ready. He was getting fitter but he had to do this in a Premier League game.

“This is not normal for a player. Ideally you would use him earlier in friendly matches but there is no time in the middle of the season for a friendly so we had to build him up playing Premier League and Champions League games.

“You have to be on top of your game to make a difference at this level. You can play at this level if you are 80, 90 or 95 per cent, but to make a difference at the highest level of football you need to be 100 per cent.

“That goes for every player and I think I can safely say he is 100 per cent now.”