There is all to play for when Denmark face South Africa in Group A at the Mane Garrincha Stadium in Brasilia on 7 August.
Where to watch live
Kick-off is set for 11pm BST. The game will be broadcast live on the BBC. Scroll down for the list of channels showing the game outside the UK.
Group A is wide open with all four teams having a point each after the first round of matches. Denmark played out a goalless draw with Iraq in their opening match and can take a giant stride to the knockout rounds by beating South Africa in Brasilia.
The Danish attack will be led by 29-year-old Brentford striker Lasse Vibe, one of three overage players in the country's 18-man squad in Rio.
South Africa stunned hosts Brazil by holding them to a goalless draw at the Mane Garrincha Stadium, with goalkeeper Itumeleng Khune making a string of saves to frustrate Neymar and company.
The Bafana Bafana are without Mothobi Mvala after the midfielder got sent off against Brazil.
Denmark squad: Jeppe Hojbjerg, Desler Puggaard, Kasper Larsen, Edigerson Gomes, Jakob Blabjerg, Andreas Maxso, Lasse Vibe, Mathias Hebo Rasmussen, Nicolai Brock-Madsen, Jacob Bruun Larsen, Barrett Laursen, Frederik Borsting, Emil Larsen, Casper Nielsen, Pascal Gregor, Robert Skov, Jens Jonsson, Lukas Fernandes
South Africa squad: Jody February, Mulomowandau Mathoho, Repo Malepe, Mothobi Mvala, Rivaldo Coetzee, Kwandakwensizwa Mngonyama, Menzi Masuku, Tyroane Sandows, Tashreeq Morris, Keagan Dolly, Aubrey Modiba, Lebo Mothiba, Abbubaker Mobara, Gift Motupa, Phumlani Ntshangase, Itumeleng Khune, Tebogo Moerane, Deolin Mekoa
|Algeria||beIN Sports Arabia|
|Brazil||Fox Sports Brazil|
|Chile||ESPN, Fox Sports|
|Colombia||ESPN, Fox Sports|
|France||France 4, Foot+|
|Hong Kong||TVB Sport|
|Italy||Premium Sport HD|
|Middle East||beIN Sports Arabia|
|New Zealand||SKY GO NZ|
|Spain||TVE La 1, TDP|
|United States||USA Network, NBC Sports|