World number one Iga Swiatek remains the standout player of the season, although her dominance has faded since her 37-match winning streak ended at Wimbledon.The major home hope is Coco Gauff. The 18-year-old American reached her first major final when she lost to Swiatek at Roland Garros, and her form on the American hard courts - quarter-final appearances in San Jose and Toronto - has been encouraging.