- Wozniacki rallies from 0-4 to beat Svetlana Kuznetsova
- Johanna Konta collapses to court, then wins match
- Novak Djokovic advances without striking ball
- Roof used for first time in tournament history
(CNN)The U.S. Open is providing relief -- again -- for Caroline Wozniacki but the heat and humidity in the Big Apple took its toll on one of the Dane's peers on the women's tour, Johanna Konta.