Frank Lampard insists he has no concerns over the performances of Timo Werner and his other attacking players following back-to-back goalless draws for Chelsea.

The Blues played out uneventful stalemates with Sevilla in the Champions League and then Manchester United in a return to domestic action on Saturday.

Chelsea managed six shots in each match, hitting the target a combined five times, with Werner replaced in the second half of both games.

Werner touched the ball in the opposition box on just six occasions across those two outings, but Lampard is happy with the big-money signing's overall contribution, having scored three in eight since arriving from RB Leipzig.

"I'm very happy with Timo," he said. "If you go back to the game [against Southampton] before that, he scores two goals and [Kai] Havertz also scores.

"I'm not worried about the front end of the pitch. It will take time for relationships to grow, like where certain players want the ball.

"It's clearly going to take time and I've got no worries about that."

Successive clean sheets for Chelsea is a major positive on the back of poor defensive displays in the opening weeks of the campaign.

The arrival of Edouard Mendy has seemingly helped, the Senegal international becoming the first Chelsea goalkeeper to keep a clean sheet in his first two league games for the club since Petr Cech in August 2004.

And Lampard acknowledged the importance of now finding the right balance between defence and attack during a hectic period of fixtures for his side.

"I suppose we have conceded more goals than we would have liked in some games this season," he said.

"It's important to address those problems. The balance of the team is something we are constantly working on."

Chelsea are not alone in struggling to find any real rhythm to their game in the early stages of 2020-21, which Lampard puts down to several factors.

"It's a hard one to pinpoint," he said. "But my feeling from our perspective is that [at] the end of last season we played a cup final against Arsenal, then went to Munich.

"Other teams had already finished a week before the Arsenal match. Just shy of two weeks later we were back again.

"We also had double figures for players in isolation for a couple of weeks, plus new players to integrate into the team, so it's not easy.

"Football is all about relationships on the pitch. Things you would usually work on on the training ground we are having to do during games. I have a lot of faith in the squad I have."