Our game on Sunday is on BBC & BT's online platforms, which is great for those of us in the UK but not so great for those of us outside the UK who can't get iFollow video.
You should still be able to access the BBC free of charge, there are instructions here.
First step is to download & install a VPN, I personally use Windscribe who offer a free trial.
Next step is to turn on the VPN and select the UK as the country of choice.
Then, go to the BBC, click on iPlayer and register for an account.
I'd recommend testing this out before Sunday to make sure it's working, just try watching BBC One to see if it works. If it doesn't, you've got a few days still to try and fix it.