Under the lights, sweat. Inside a hall, endeavour. This is who Caroline Wozniacki is, not necessarily elegant nor bruising but accomplished in the fine art of the struggle. In her labour lies her poetry.
Two hours 19 minutes she plays against Petra Kvitova but she'll stay four hours, five even, as long as she limps home undefeated. This is why we admire athletes because they're explorers, committed to travelling to places we refuse to go - to the very ends of their talent and endurance.