Bringing the 🔥 to Flushing @sloanestephens battles past Azarenka 6-3 6-4 to advance to R16 at the #USOpen. She takes on 🇧🇪 Mertens next with a spot in the quarters on the line. #tennis #sloanestephens #stephens #ustennis #nyctennis #arthurashestadium