But the 22-year-old insists he has learned from his mistakes and will not let it affect his World Cup. Spain is considered one of the leading favorites this tournament, while Portugal boast the best player in alive in Cristiano Ronaldo.
Providing the most players of any Premier League club for Gareth Southgate's 23-man squad, if you consider that Kyle Walker enjoyed an eight-year spell with the club too, the Spurs influence touches as many as six English players.
While cautiously optimistic about England's World Cup hopes, ESPN's Ian Darke breaks down what to expect from the Three Lions in Russian Federation.
Tottenham players lack a winning mentality and will undermine England's hopes of going all the way at the World Cup, according to Tony Adams.
Adams questions the Spurs players psyche and if they know how to win.
"He's tall and has real ability - a very good player".
But Adams is concerned their lack of club success under Mauricio Pochettino will translate to the worldwide stage.
"England have a kind draw up until the last eight and if they get that far it will be 'Hallelujah!'".
The England worldwide still needs to improve and develop, but the 22-year-old certainly has the potential to become one of the best and most complete midfielders in the world. However, Southgate deploys Alli slightly deeper to see the more of the field ahead of him.
He added: "Teams who win World Cups usually have a real anchor, such as [Spain's] Sergio Ramos or [former Italy centre-half] Fabio Cannavaro". England haven't got that rock. "I am confident we can have a successful tournament".