All eyes will be on Lionel Messi as the 30-year-old Argentina star bids to lift the trophy for what looks likely to be his final World Cup tournament.
Group D kicks off with a clash against Iceland in Moscow, who are starting the tournament pretty confident after knocking England out of the Euro 2016.
Argentina should tread lightly though – Iceland could end up being the underdogs in the so-called 'Group of Death' as their track record has proven after drawing with Portugal at its European Championships debut two years ago.
With Iceland also reaching this stage for the first time in their history, they will be putting up a good fight to keep that momentum going.
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What time is kick-off?
Argentina vs Iceland kicks off at 2pm BST.
Where can I watch it?
The game will be shown on ITV.
Argentina 4-2 Iceland. Both squads will be keen to get out of their groups, but it will certainly be entertaining to watch Iceland's star player Gylfi Sigurdsson give the Argentines a tough time.
But who do you think will win? Let us know by voting above.