Kane has remained with Spurs throughout his professional career, scoring 143 Premier League goals for the North London side including two Golden Boot-winning campaigns.However, he is still yet to win a trophy in his career and Merson has questioned why United or City have not made a move to secure his services."I'm probably Harry Kane's biggest fan after his mum and dad! I look at him and I think: 'What are you going to win at Tottenham?'" he told Sky Sports."He's one of the best in the business