Expected to Samba their way into the latter stages, Brazil have muted pre-tournament predictions with two stilted displays.
Serbia and Switzerland were widely thought of as the bridesmaids in Group E, however, a dramatic finale could see both sides progress at the Selecao's expense.
But while Brazil may not have purred through the opening stages of this World Cup, neither have they provided genuine cause for concern. Serbia still enters this match as underdogs and Tite’s men are widely predicted to overcome their teething problems.
Amid this anticipation, Serbia will look to produce a surprise knockout. With an us-against-the-world mentality being fostered by Mladen Krstajić, his players can be expected to be highly motivated for this encounter.
Below, we look at three key battles which could help them overcome the odds and deliver a seismic shock to the watching world.