With the business end of the World Cup now upon us, the competition is undoubtedly intensifying. With the potential for extra time and of course penalties in the latter stages, substitutions are now more important than before.
This year's competition has produced some shocking results, but most of the countries originally tipped to be in with a chance of winning it all still remain in the competition. The quarter-finals begin with a crunch game between Croatia - who've ridden their luck so far - and tournament favourites Brazil at the Education City Stadium on Friday. Louis van Gaal's Netherlands side then take on Lionel Messi and Argentina.
Saturday presents even more action. Surprise package Morocco take on Portugal before Gareth Southgate's Three Lions face their toughest opponent yet in the current holders, France.