England's Jamie Vardy knows his standards need to be high if his dream journey from non-league to the World Cup is to become a reality.
The 30-year-old's fairy-tale ascent is well-documented, having rapidly gone from spearheading Stocksbridge Park Steels to Leicester City's remarkable Premier League triumph.
Vardy's performances have led him to become an England regular, scoring six goals in 17 appearances and earning a place in the Euro 2016 squad.
The forward is now hoping to add a World Cup chapter to his remarkable story, but knows he has to be performing well after seeing Gareth Southgate cut regulars struggling for minutes and form.