Bologna winger Jonathan Rowe, who worked with Roberto De Zerbi at Marseille, has sent a warning to Tottenham players about training under the Italian.The 46-year-old has made a huge impact since walking through the door, instilling confidence in a Tottenham side that was winless in the Premier League in 2026 when he arrived.De Zerbi has signed a five-year contract at Spurs, which clearly shows that the club and the Italian both see this as a long-term project.Reports indicate that Tottenham are ready to back their new head coach with significant funds this summer, as they eye a major rebuild of their squad.Credit: @thefrederikkejensen / InstagramJonathan Rowe issues a warning to Tottenham players about Roberto De Zerbi’s training methodsSo far, the Tottenham boss has refused to look ahead to next season, making it clear that his focus has solely been on keeping the club in the Premier League.However, Rowe, who worked with De Zerbi last season, has now revealed what pre-season training under the former Brighton boss is like.The 23-year-old English winger said about working with the Tottenham boss (via Gazzetta dello Sport): “With him, I learned to pay so much attention to detail. Even though the training methods, especially at the beginning, were a bit surprising. They were exhausting, incredibly tiring.“We’d wake up at four in the morning and go running in the woods, in the cold. We had flashlights to see in the dark. And then there were circuits, uphill sprints. I’d never seen anything like them in my career.”Spurs players are loving life under De ZerbiIt appears that the new Tottenham boss has not taken long to win over the dressing room, with several senior Spurs players praising De Zerbi for instilling belief in the dressing room.Even the injured Cristian Romero has spoken very highly of the new Spurs boss, describing him as a ‘football professor’.It appears that the players have certainly bought into the Italian’s methods, and one would expect to see the team evolve tactically next season once De Zerbi has a full pre-season with the squad.READ MORE: Toby Alderweireld tells Cristian Romero to change to fulfil his potential at TottenhamThe post I played under De Zerbi and Tottenham stars should watch out for his 4am training starts appeared first on Spurs Web.