Ronaldo and Portugal's match is one of three on the schedule for tonight. And it is a big night for their opponents Iceland. This is the first major tournament that the country of 330-thousand has every qualified for, so they will make their debut on the world stage.

So here is a look at the full schedule. Russian fans will be in the spotlight as their team prepares to face Slovakia, who are competing at its first Euros as an independent nation. Slovakia are in need of a win after its defeat to Wales. Meanwhile, with an 11-game unbeaten run in competitve fixtures Austria are favourites to open their campaign with victory over a Hungary side who are appearing in their first major finals since 1986.