Venue: Flushing Meadows, New York Dates: 31 August-13 September
Coverage: Live radio and text commentary on every Andy Murray match plus selected matches.
Britain's Jo Konta extended her winning streak to 14 matches but Laura Robson let a winning position slip in the US Open first round.
Konta, who came through three rounds of qualifying, beat American wild card Louisa Chirico 6-3 6-0 in New York.
Robson led 4-0 in the final set but Russia's Elena Vesnina won 3-6 6-3 7-5.
Fellow Britons Aljaz Bedene and James Ward also play on Tuesday, before Andy Murray meets Australian Nick Kyrgios in the night session.