Top-ranked Belgium take on fellow form side Italy later on Friday as the first Euro 2020 quarter-finals take place.
Both teams have 100% records so far at the tournament and meet in Munich with Belgium having major injury doubts surrounding creative midfielders Eden Hazard and Kevin De Bruyne.
The first quarter-final in St Petersburg pits Switzerland, the conquerors of world champions France, against free-scoring Spain.
The Spanish started the tournament slowly with two draws but then thumped Slovakia 5-0 and Croatia 5-3 after extra-time in the last 16.
The game is taking place in Russia's second city despite soaring coronavirus cases there.