Chelsea new boy Kai Havertz admits he was not at his best in his Premier League debut against Brighton after having just a few days of training with his team-mates.

After spending £200million on new players this summer, Blues boss Frank Lampard was only able to give debuts to two - Timo Werner and Kai Havertz - at the Amex Stadium.

While Werner was brought down for a penalty which was scored by Jorginho and a constant presence with his pace, his German colleague Havertz was on the fringes of the game for much of the match.

Havertz, who made his name for Bayer Leverkusen with his goalscoring prowess from midfield, is short on match sharpness after linking up with the Chelsea squad at the start of last week.

The Premier League can be a rude awakening for newly arrived foreign players and it was no different for Havertz.

“It was a very tough game, very difficult because I had long holidays and I came back and trained for five or six days with the team,” said Havertz.

“More important is that we won so I am very happy to make my debut.

“The Premier League is much tougher than the Bundesliga. I have seen that in training and saw it in the game as well.

"But I am happy to play 80 minutes and hopefully next week I will continue.”

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Frank Lampard's team have made wavs by signing Kai Havertz, Timo Werner, Ben Chilwell, Hakim Ziyech, Malang Sarr and Thiago Silva.

And they don't seem keen on slowing down yet. one player who continues to be linked with the Blues is West Ham and England midfielder Declan Rice.

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Havertz's confidence that there would be an improvement from him was echoed by Lampard, who says he liked what he saw from the 21-year-old.

"I liked him. It’s not a game where you come away and say ‘there’s 10 vintage moments’ but I thought there were moments of big quality and calmness," he said.

"It’s a big ask [to settle in immediately] there’s lot on his shoulders for the singing that he was he’s young and coming into a new league.

"He plays the game with such quality and the way in which he receives the ball. We saw a few glimpses of that.

"We saw him sprint back 80 yards to make a tackle after giving the ball away. Everything I’ve seen in terms of his character is spot on. ‘His quality will come through.

"It’s asking a lot for him tonight but we saw glimpses. We’re going to see a lot more of him, I think he’s a hugely talented young player."