Graeme Souness believes Dele Alli is on his way to being one of the best players in the game but must keep his fiery edge after his performance against Chelsea on Wednesday night.
Alli scored twice as Tottenham comprehensively beat the Blues 2-0 to stop them winning 14 Premier League in a row.
Souness, who was appearing as a pundit on Sky Sports, said if the England international can keep focused he can achieve whatever he wants.
'The only thing will stop him is if he stops learning.