Svetlana Kuznetsova was so focused and ‘in the zone’ during her Fed Cup match against Ana Ivanovic she didn’t even notice she’d won it, only noticing the fact after walking back to her side before turning around, watching Ivanovic wait at the net.
Russia played Serbia in the 2012 Fed Cup Semi Finals, eventually winning 3-2 as both nations won twice in the singles matches. The doubles turned out to be the deciding factor.
Kuznetsova won her match with Ivanovic after three sets, 6-2, 2-6, 6-4. Maybe she was too exhausted from the effort or actually thinking about something else instead to notice she had won.