"That's how my parents did it 50 or 60 years ago": Lothar Matthäus mocks World Cup hosts the USA

During RTL's post-match analysis, Matthäus disclosed that match-winner Leroy Sané had raised concerns about the heavy pitch just minutes earlier. "The ball is slower; it doesn't roll as well on the turf," Matthäus explained.

The 1990 World Cup winner couldn't believe that the pitch had been watered "with a garden hose" before the match. "That's how my parents did it 50 or 60 years ago. They're still doing it that way here today," Matthäus scoffed. "It slows the game down; the passing becomes slower. The team will have to adapt to cope with different surfaces at this World Cup."

On Saturday evening (German time), Kai Havertz put the DFB side ahead in the second minute, heading a free-kick cross from Joshua Kimmich over the line.

Havertz later admitted that the lengthy pre-match ceremony, which saw each of the 26 U.S. World Cup squad members introduced in detail, had left him restless. "To be honest, it was a bit too long," the 26-year-old told RTL. "I'm not sure if it will be the same at the World Cup matches. You have to be prepared for it."

Despite Germany's strong start, the United States grew into the game after the midway point of the first half and equalised through Antonee Robinson in the 37th minute. After the break, Germany regained control, and just before the hour mark, Sane restored the lead to make it 2-1.

Julian Nagelsmann's Germany begin their World Cup campaign on 14 June in Houston against Curaçao. They then face the Ivory Coast in Toronto on 20 June, and finish the group stage against Ecuador in New York/New Jersey on 25 June.

Unlike in the two friendly matches against Finland (4-0) and the USA (2-1), Manuel Neuer—not Oliver Baumann—will start in goal against Curaçao. The Bayern Munich captain has returned to the national team for the World Cup finals, but has not yet played due to a calf injury.

Once the squad relocates to its World Cup base in Winston-Salem on Monday, Neuer will "join team training and then play against Curaçao," Nagelsmann confirmed.