Germany recorded the largest win in the opening game of a European championship at Allianz Arena, putting 10-man Scotland to the sword as Florian Wirtz, Jamal Musiala, Kai Havertz, Niclas Fullkrug and Emre Can scored for the hosts.

Kroos has come out of international retirement to represent Germany at its home tournament ahead of calling time on his glittering career, and he produced a metronomic midfield performance.

The 34-year-old completed 99 per cent of his passes against Scotland (101/102), the highest completion rate since 1980 of any player to attempt 100 or more passes in a Euros match.

Joshua Kimmich was the only player to match his four chances created, while 36 of his passes entered the final third as Scotland was penned back from the off.

Before dominating the midfield battle, Kroos brought an air of calm to an excitable Germany dressing room, Nagelsmann has revealed.

"He is very important, just like everyone else," Nagelsmann said when asked about Kroos. "He's very experienced and calm.

"The team were really loud and he said a few quiet words that were really powerful. He is part of the group, but that experience is what makes him different. 

"With his record, some would have problems being accepted, but he is not arrogant, he is very important for the team and a pole of calmness.

"But despite all of his successes and status, we see him as part of the group."

Germany takes on Hungary in its second Group A game in Stuttgart on Thursday (AEST), before facing Switzerland in Frankfurt on 24 June (AEST).