Which records can Ronaldo break in Germany?published at 19:30 British Summer Time 18 June
Portugal v Czech Republic (20.00 BST)
Since making his debut in 2004, Cristiano Ronaldo has scored at every Euros he has played in and would continue that run with a goal at this tournament.
He could also become the oldest goalscorer at a European Championship.
Ronaldo is also hoping to emulate former Spain goalkeeper Iker Casillas by captaining his side to two Euros wins.
The former Real Madrid shot-stopper led Spain to the title in 2008 and 2012, while Ronaldo was captain when Portugal won in 2016.