With France the clear favourites to take top spot in Group C, Peru and Denmark could already be competing for second spot when they meet in their World Cup opener on Saturday.
Both sides will fancy their chances of beating outsiders Australia but will not be banking on taking anything against the French.
Latest Odds
This clash in Saransk is therefore likely to prove decisive, and Age Hareide's men are 7/5 (2.40) favourites with dabblebet to come out on top.
Taking part in their first World Cup since 1982, La Blanquirroja are available at 11/5 (3.20) to make up for lost time with a long-awaited victory at the Mordovia Arena.
The South Americans drew two of their three matches at Spain '82, and you can get odds of 11/5 (3.20) on them playing out another stalemate in this one.
Team News
Ricardo Gareca can call upon the services of captain and record goalscorer Paolo Guerrero, whose doping ban was temporarily lifted just weeks before the tournament.
Andreas Bjelland and Nicklas Bendtner were both left out of the Danish squad due to injury, although star man Christian Eriksen is set to take centre stage.
Defences on top
Considering the teams' respective defensive records of late, it look like Guerrero and Eriksen will need to be on top form if we are to see much goalmouth action here.
Peru have conceded just twice in their previous nine matches, while their opponents have only let in three goals in the last 10 internationals.
Predictions
With so much at stake, odds of 3/4 (1.75) actually seem like strong value on at least one of the backlines holding strong and no more than one team finding the net.
That bet would have paid out in eight of Peru's last nine matches, as well as the last four in a row for Denmark.
Both teams to score: No at 3/4 (1.75) for a 2.5pt stake with dabblebet