As the clock ticked past midnight into Thursday morning, Stan Wawrinka and Juan Martin del Potro were just starting the third set.
In the end, Wawrinka simply wore down del Potro, 7-6 (5), 4-6, 6-3, 6-2.
it was a crazy atmosphere, really late match.
Thank you everybody for staying so late.
I'm really happy to have won that match.
For del Potro, the outcome was a disappointment, but reaching the quarterfinals was another milestone in his return from recurring wrist injuries that had cost him most of three years on tour.
