It doesn't matter if you don't have a Sky or BT Sport subscription. If you've got a kind friend or family member who does, you can borrow their login details at no extra cost:
Sky Go can be used on two devices
Sky Go Extra can be used on up to four devices
BT Sport can be used on unlimited devices, but you can only stream on two at once
Sky Go and the BT Sport app are compatible with lots of devices, like:
Computers and laptops
iPads and Android tablets
There's a good chance the sport you want to watch is being shown on terrestrial TV. Ofcom rules mean these sporting events have to be free to watch:
FIFA World Cup
FA Cup Final
Scottish FA Cup Final
UEFA Euros Finals
Rugby League Challenge Cup Final
Rugby World Cup Final
Other events like the Six Nations, Commonwealth Games and World Snooker Championships often get shown on terrestrial channels too, so it's worth checking ahead of time.
WherestheMatch.com lets you check the day's sport schedule for free. And for less than £3 a year, you can see where all live sport is being shown for the whole year.
If you've got a friend with Sky or BT Sports, invite yourself round to keep them company while they watch the big game.
Don't go empty handed; offer to do the beer run, or bake a nice cake.
OK, so it's not going to be completely free. If you stand staring at the big screen without a drink in your hand for long enough, you'll probably be asked to leave. But you can still enjoy the game for the cost of a pint or two.
You can find which pubs near you are showing sport by checking the Match Pint website or by downloading their app.
Even better, if you check into the pub you're at with the Match Point app, you could get rewards like 2 for 1 drinks or even a free pint.
If you've got a broadband and TV bundle, you may already have some sports channels included. For example, Sky Sports Mix is now free with any Sky TV or Virgin Media package.
Sky Sports Mix lets you watch a combination of highlights and live sport. You'll get it for free whether you're a new or existing customer, on Sky 407 and Virgin 517.
If you're looking to switch broadband provider, check to see which suppliers include sports channels in the cost of your package. BT broadband and TV customers can add BT Sport for free until 31st July 2017.
Depending on which network provider you're with, you might get Sky or BT Sport thrown in with your monthly contract:
Keep an eye on the Now TV website for free trial offers too. It's rare they include Sky Sports channels, but it's always worth checking it to see if that changes.
You'll need the Now TV app to be able to watch Sky Sports channels, but you can get this for free on a range of devices. Just download it from your app store and start streaming.
Alternatively, you can buy a Now TV box for less than £15 at your nearest electrical shop.