England rugby union head coach Eddie Jones has said Pep Guardiola changed the way he managed after watching the Spaniard whilst at Bayern Munich.
Talking to Sky Sports, the Australian said: "I came out of that session embarrassed about how I had been coaching.
"When I was a young coach I used to coach pretty hard and I probably got criticised a bit for it," he continued.
"But I went and watched Pep's session. He was coaching some of the best players in the world and it was minus five. It was freezing.
"They did quite a traditional warm-up and I thought, 'Maybe I'm not going to learn anything today'.
"But, then they had 21 players and they were in three teams of seven, working on getting into space."
Jones, who has presided over 19 wins out of a possible 20 whilst he has been in charge of England since 2015, suggested Guardiola's intelligence of different sports and cultures was clear to see.
Jones said: "Pep was out there running the session and speaking in four or five different languages telling guys like (Arjen) Robben what to do.
"Not only football but European handball, Aussie rules, rugby union, they are all trying to create space and find space. You can never learn enough about that," the 57-year-old continued.
Manchester City have started the season in fine form with seven points out of a possible nine. However, it did take Guardiola a season to adjust following his arrival last summer.
Jones, though, highlights that the methods that the former Barcelona manager utilises during his training sessions should be an inspiration to coaches around the world.
"It was just really enlightening how hard they worked in that 20 minutes and how he was embedding his philosophy on that team and how the players had bought into it.
"I remember them coming off and they had sweat pouring off them. I have watched many football teams train and they were down here and he was up there.
"It definitely changed the way that I coach. I work the players a lot harder now," Jones concluded.
England next take to the field on November 11 as they take on Argentina at Twickenham.