To view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 video
No compatible source was found for this media.
Dele Alli has been told to focus on his football
Dele Alli has been warned by a former Tottenham star he risks wasting his huge potential if he doesn’t focus fully on football.
The playmaker has made rapid progress since moving from MK Dons to Spurs in 2015 and, at 21, has become one of the stars of the Premier League and the England team.