Brazil v Spain, Sunday 23:00, BBC1, Match Odds: Brazil [2.68], Spain [2.9], The Draw [3.45]
This really does make for an intriguing match-up with next summer's World Cup in mind as one almighty psychological blow can be landed in the Maracana.
On the balance of the encounter with Italy, Spain should really be heading home now, but somehow their quest for the only international prize left for them to win continues.
Perhaps it's this ability to scrape through, despite playing well below their usual standards, which Brazil must be most wary of.
Surely though, with the Spaniards' reserves significantly siphoned by that 120 minute-plus battle against Italy, it's the hosts who can take advantage.
Brazil's own quest for a third consecutive Confederations Cup crown has been built around some great performances thus far, especially in that Group A decider against Italy where they ran out comfortable 4-2 winners.
Neymar is their star and, with three goals to his name already, including two within the opening ten minutes of games, he's sure to be the one to trouble his new Barcelona team-mates the most.
If Brazil take a leaf out of Italy's book - minus the flawed finishing - they could carve themselves a lead to protect in the first half as they have done in all four games so far.
Using their fresher legs and spurred on by a rocking Maracana crowd, the hosts have shown enough over the tournament to see the job through.
Brazil have gone in front in every game they have played at the Confederations Cup thus far and, judging by their opponents' opening 45 against Italy, their best chance of victory will be to continue that theme. Spain looked uncharacteristically shellshocked as the Azzurri came flying out of the blocks in that semi-final and that won't be lost on Luiz Felipe Scolari.
Another feature of A Selecao's success thus far is their ability to score goals in either half. This is something they have managed to do in all four games and something that they are capable of achieving once more in the Maracana.