Hansi Flick was delighted with Barcelona's focus and determination as they earned a commanding 5-2 win at Red Star Belgrade in the Champions League.

Robert Lewandowski scored twice to set them on their way, with Inigo Martinez, Raphinha and Fermi Lopez also getting on the scoresheet as Barcelona remained in control throughout.

It was a victory that lifted Barca to sixth place in the 36-team Champions League table on nine points, having scored a competition-leading 15 goals in four games.

In fact, Barcelona have netted 55 goals in 16 games across all competitions in 2024-25, the most of any team from the big-five European leagues. Meanwhile, their 14 wins are the joint-most of any side, along with Liverpool.

After a third consecutive triumph in the Champions League, Flick said he liked how his side got things done with the seriousness required.

"The most important thing is the three points. It's not easy to win away from home in this competition, the Champions League is complicated," Flick, who led Bayern Munich to the 2020 Champions League title, told Movistar Plus.

"I'm very happy, I really value what we're doing. We've been very good on the ball, and we've put a lot of pressure on.

"Red Star played very well, they knew how to play with the ball, and it's difficult to defend against them. I really appreciate my players being focused for 90 minutes because it's not easy."

Lewandowski's double means he is level with team-mate Raphinha, Bayern Munich's Harry Kane and Sporting CP's Viktor Gyokeres as the competition's top scorer with five goals.

The Pole has scored 19 goals in 16 appearances for Barcelona this season; the most of any player for a team in Europe’s big-five leagues across all competitions. 11 of those 19 goals have come in away matches, which is also the most of any player this term.

And Lewandowski is thrilled with Flick's aggressive approach.

"Since the beginning of the season we have had a goal: we have to play a very attacking football but without losing sight of how well our defensive line has been playing," Lewandowski said.

"Everything that works so far is almost perfect. We have to look at what we can do better, sure, but I feel very good, the team is very happy.

"I think in this new Champions League format, winning away games is very important. In the first half, we played a bit slow, but in the second half, we had a lot of chances.

"Sometimes, when a team plays very defensively like Red Star today, we need a bit of patience. I'm always looking for a free space to be able to touch a ball and score. That's why I'm very happy. As a team, we played very well."