The roof on the Arthur Ashe Stadium is already making its money back as rain has suspended play on all other courts as of Sunday afternoon.
Sharapova will face Latvian No 16 seed Anastasia Sevastova on Flushing Meadows’ main court, sheltered from the rain but she will have to wait for Denis Shapovalov and Pablo Carreno Busta to get their fourth round match out of the way first.
Venus Williams is also in action on the middle Sunday – she will close out the evening session by taking on Carla Suarez Navarro with a quarter-final against either Petra Kvitova or Garbine Muguruza awaiting the winner.
US Open 2017 results LIVE – Latest scores from Day 7
Women’s singles
16- Anastasija Sevastova (Latvia) beat Maria Sharapova (USA) 5-7, 6-4, 6-2
9-Venus Williams (U.S.) beat Carla Suarez Navarro (Spain) 6-3 3-6 6-1

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Men’s singles
12-Pablo Carreno Busta (Spain) beat Denis Shapovalov (Canada) 7-6(2) 7-6(4) 7-6(3)
29-Diego Schwartzman (Argentina) beat 16-Lucas Pouille (France) 7-6(3) 7-5 2-6 6-2