Kevin Wimmer has admitted to Tottenham's official website that he did not expect the gruelling pre-season sessions that he got when joining the club last summer.
Since Jan Vertonghen got injured in January, Wimmer has partnered up with Toby Alderweireld in the heart of Tottenham's defence - a pairing which has earned plenty of praise in recent months as the Lilywhites continue to chase Premier League glory.
Indeed, the 23-year-old looks very comfortable with English football, but Wimmer revealed via the club's official website that the intensity of the game, coupled with the demanding training sessions, was something of an eye-opener for him.
When asked about the intensity of the Premier League, Wimmer said: "It’s true, you have to get used to this first, even the training sessions.
"I always thought in Germany that we had a hard pre-season but when we came here, it was much harder.
"Yes, it’s tough [the training in Germany] but you also have a winter break and time again for another pre-season. Here in England, there is no winter break and perhaps that’s why pre-season is so hard in the summer."
Vertonghen, who was ruled out for two months toward the end of January, is due back in first-team action shortly, but it remains to be seen if he can win his place back.
Manager Mauricio Pochettino may be reluctant to integrate him back this early with so much at stake, with Spurs five points behind leaders Leicester City with seven games to go.