Erling Haaland made a bang during his debut for Manchester City against Bayern Munich, scoring the game’s only goal after just 11 minutes on the pitch.

He was helped with a cross from man-of-the-match Jack Grealish, which Haaland was able to convert from short range.

The Norway international left Borussia Dortmund for City – the club his father Alf Inge previously played for – in a deal worth £51m in June.

The match, held at Wisconsin’s Lambeau Field, was delayed for 15 minutes by a thunderstorm, and play was suspended until further notice shortly after Haaland’s goal.

Fans were urged to take shelter on the concourse as lightning descended on the area and players left the field.

Officials then announced a reduced game, with 27 minutes left in the first half and a 40-minute second half.

The interruptions appeared to impact both sides’ momentum, with neither managing to clinch another goal over the total of 80 minutes play.

Pep Guardiola praised 22-year-old Haaland’s instinct but said the forward needed to be handled carefully to aid his return to full fitness.

“He scored a goal, which is important. These type of goals in front of keeper – always he’s there,” Guardiola said. “The first minutes, he needs more rhythm and time but already he had 45 minutes which is good for him.

“We’ll see how he reacts to the niggles that he had in the previous weeks. After we come back we have long weeks to prepare every weekend game. In those two or three weeks we will get the best form.”

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