"If you ask any English player, they have got one eye on the World Cup," the 21 year old defender said.
"First and foremost I am going to have to work hard on and off the pitch to earn that sort of achievement, but it is something I am definitely working towards.
"It wasn't that I wanted to leave Tottenham but I am at a stage in my career where I want to play regular football.
"Spurs have three fantastic centre-halves and it may have been a case of being fourth-choice this season and not getting as many games as I would have liked.
"I didn't want to put my career on hold, I wanted to get out and get as much experience as possible and these opportunities don't come around very often.
"I want to help Cardiff progress as a team and progress myself."