Group E's standings could be thrown into further disorder tonight when Serbia and Switzerland clash at the Kaliningrad Stadium (7pm BST), in a contest that could put either team on the brink of progression to the last 16.
Dušan Tadić's Serbia top the pack after a 1-0 win over Costa Rica in their opener while group favourites Brazil battled to a 1-1 draw with Switzerland.
At number six in the Fifa world rankings, its unsurprising that the Swiss were competitive against five time world champions Brazil, but the end result was still somewhat unforeseen.
The stakes in matchday two are high for Serbia, who are able to put a stronghold on their bid for a knockout spot with a second consecutive victory, while Switzerland will be buoyed by their gutsy showing against the South Americans and fancy themselves to follow up with another positive result.
Both nations have a strong attack minded setup, though scored just once in their opening matches, both from set pieces. Nevertheless, this all-European affair on Oktyabrsky Island, in far west Russia, might well be a high scoring matchup.