The Spurs full-back, 24, was discussing his side's pre-season, with Pochettino having worked his squad very hard in training.
But Rose has nothing but nice things to say about the Argentine, despite his tough approach to practice, and says he promised to improve him enough to get him into the England squad.
“Mauricio Pochettino has been brilliant for me, I have nothing but nice things to say about him,” Rose is quoted as saying by the London Evening Standard.
“I met the manager before pre-season and he said if I trusted him he would make me a far better player and get me into the England squad.
“But I’ve had to work hard to get there. I remember an interview he did when he first took over saying players have to suffer in training to enjoy games. Seriously, he wasn’t joking either.
"We do have to work hard in training and I do suffer but it’s an enjoyable kind of suffering because I’m benefitting so much."