There is a real carnival atmosphere building up outside the Lusail Stadium with Argentina and Saudi Arabia fans determined to enjoy themselves.
Clinical Al Shehri
Argentina v Saudi Arabia (10:00 GMT)
Getty ImagesCopyright: Getty Images
Saudi Arabia’s Saleh Al Shehri was joint-top scorer of the AFC third round qualifiers for Qatar 2022 with four goals (level with five others), with the striker netting with all four of his shots on target.
You would imagine Saudi Arabia will need to make the most of the chances they do get today.
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Use the number 03301231826, visit this URL, or scan the QR code below by using your phone’s camera.
Throughout the tournament we want to hear from YOU!
We want you to send in your pics of where you're watching the office. It might be in Qatar, it might in the living, it could be in the office or it could be an exotic location.
Number 10. Messi. If I had a pound for the number of Lionel Messi shirts there are at the Lusail Stadium, I would be a very rich man. There is some huge expectation on some little shoulders - can he deliver in what is surely his last World Cup?
BBC SportCopyright: BBC Sport
'Messi will produce at this World Cup'
Argentina v Saudi Arabia (10:00 GMT)
Clinton Morrison
Former Republic of Ireland striker on BBC Radio 5 Live
Lionel Messi is on a different level and he can do whatever he wants.
Ashley is right, he'll know his own body. Once you get to a certain age you know how much training you need to do and how much you need to be with the group.
It only matters what he does on the pitch and he will produce in this World Cup.
Messi starts for Argentina
Argentina v Saudi Arabia (10:00 GMT)
There were rumours that Lionel Messi might not be fit today but he is and STARTS for Argentina.
Aston Villa goalkeeper Emi Martinez is in goal.
.Copyright: .
Salem Al Dawsari is Saudi Arabia's dangerman and he lines up on the wing.
.Copyright: .
A fairytale finale?
Getty ImagesCopyright: Getty Images
It would be a real shame to not see Lionel Messi lift the World Cup trophy for Argentina at some point in his amazing career and, at 35, time is against him to make that a reality.
Four years ago was a particular low for Messi and the national team as they were eliminated from the 2018 World Cup at the last 16 stage after managing just a single win in the entire tournament.
Now though, Argentina are on an incredible run of form. The South American champions are unbeaten since 2019 and among the favourites to end their 36-year wait for World Cup glory.
The last hurrah?
From 2006...
Getty ImagesCopyright: Getty Images
... to 2018
Getty ImagesCopyright: Getty Images
.. and now, 2022.
Many of us will have grown up with Lionel Messi at World Cups but we could be about to see one of the greatest footballers of all time grace football's biggest stage for the final time.
Live Reporting
Gary Rose
All times stated are UK
Carnival atmosphere building
Argentina v Saudi Arabia (10:00 GMT)
Andy Cryer
BBC Sport in Qatar
There is a real carnival atmosphere building up outside the Lusail Stadium with Argentina and Saudi Arabia fans determined to enjoy themselves.
Clinical Al Shehri
Argentina v Saudi Arabia (10:00 GMT)
Saudi Arabia’s Saleh Al Shehri was joint-top scorer of the AFC third round qualifiers for Qatar 2022 with four goals (level with five others), with the striker netting with all four of his shots on target.
You would imagine Saudi Arabia will need to make the most of the chances they do get today.
Get Involved
You can now get involved by sending your comments in via WhatsApp.
Use the number 03301231826, visit this URL, or scan the QR code below by using your phone’s camera.
Visit here for full privacy notice.
Where are you watching? - send us a photo
Throughout the tournament we want to hear from YOU!
We want you to send in your pics of where you're watching the office. It might be in Qatar, it might in the living, it could be in the office or it could be an exotic location.
Send your photos in, and we'll look to include the best in this live page.
Can Messi deliver?
Argentina v Saudi Arabia (10:00 GMT)
Andy Cryer
BBC Sport in Qatar
Number 10. Messi. If I had a pound for the number of Lionel Messi shirts there are at the Lusail Stadium, I would be a very rich man. There is some huge expectation on some little shoulders - can he deliver in what is surely his last World Cup?
'Messi will produce at this World Cup'
Argentina v Saudi Arabia (10:00 GMT)
Clinton Morrison
Former Republic of Ireland striker on BBC Radio 5 Live
Lionel Messi is on a different level and he can do whatever he wants.
Ashley is right, he'll know his own body. Once you get to a certain age you know how much training you need to do and how much you need to be with the group.
It only matters what he does on the pitch and he will produce in this World Cup.
Messi starts for Argentina
Argentina v Saudi Arabia (10:00 GMT)
There were rumours that Lionel Messi might not be fit today but he is and STARTS for Argentina.
Aston Villa goalkeeper Emi Martinez is in goal.
Salem Al Dawsari is Saudi Arabia's dangerman and he lines up on the wing.
A fairytale finale?
It would be a real shame to not see Lionel Messi lift the World Cup trophy for Argentina at some point in his amazing career and, at 35, time is against him to make that a reality.
Four years ago was a particular low for Messi and the national team as they were eliminated from the 2018 World Cup at the last 16 stage after managing just a single win in the entire tournament.
Now though, Argentina are on an incredible run of form. The South American champions are unbeaten since 2019 and among the favourites to end their 36-year wait for World Cup glory.
The last hurrah?
From 2006...
... to 2018
.. and now, 2022.
Many of us will have grown up with Lionel Messi at World Cups but we could be about to see one of the greatest footballers of all time grace football's biggest stage for the final time.