Aleksandar Kolarov's brilliant second-half free-kick saw Serbia beat Costa Rica 1-0 in their opening Group E contest on Sunday.
On a day of upsets, set-pieces and yet more questions over VAR, we round up the talking points from day four at the World Cup.
Aleksandar Kolarov was always confident of making the difference as he lined up what proved to be Serbia's winning strike in their World Cup opener.
Relive all the action from the Samara Arena as Serbia edge Costa Rica 1-0 in Group E of the World Cup.
Sunday looks set to be another captivating day at Russia 2018 with world champions Germany and five-time winners Brazil in action…
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