Five-time winners Brazil will attempt to secure a first win, while Serbia have an opportunity to make history.
Here, Press Association Sport ponders what to look out for on Friday:
Brazil v Costa Rica
Serbia v Switzerland
Nigeria v Iceland
Also coming up
A selection of England players will face the media at their base in Repino, looking ahead to Sunday’s clash with Panama. Should Group G rivals Belgium avoid defeat against Tunisia on Saturday, Gareth Southgate’s Three Lions will ensure a place
in the knockout stages with victory in Nizhny Novgorod following Monday’s last-gasp win in Volgograd.