Defeat for either side at the Al Janoub Stadium in Monday’s first match would spell the end of their last-16 qualification dreams after both suffered opening week losses.
The Indomitable Lions gave a solid enough account of themselves but fell victim to a second-half winner from Cameroon-born forward Breel Embolo – who did not celebrate – against Switzerland, continuing a winless run on football’s grandest stage that dates all the way back to the 2002 tournament in Japan and South Korea.
Serbia, meanwhile, frustrated Brazil’s much-fancied samba stars for more than an hour before a stylish Richarlison brace broke their stubborn resistance in a 2-0 reverse in Lusail.
The stakes are high in Al-Wakrah! Here is how to watch the World Cup action live and for free in the UK today.
Where to watch Cameroon vs Serbia
TV channel: In the UK, today’s match will be televised live free-to-air on ITV, with coverage beginning at 9am GMT ahead of a 10am kick-off.
Live stream: Fans can also catch the action live online via the ITV Hub or ITV website.
Live blog: You can follow all the matchday fun via Standard Sport’s live blog.