Subject to fitness, Maria Sharapova will make her first appearance at a Grand Slam since her 15-month doping ban after being granted a US Open wildcard.
The Russian has endured an additional lay-off due to a thigh injury, missing Wimbledon as a consequence, and was only able to play one match at Stanford at the start of the month before suffering an arm problem.
She also sat out the French Open after being refused a wild-card, having recorded mixed results during her initial comeback.
A semi-final run at Stuttgart suggested the 30-year-old would hit the ground running, but she then failed to put together successive wins in Madrid and Rome, where she sustained her thigh injury.
Eleven years on from her solitary success here, expectations have rarely been lower from the career Grand Slam holder, but few things spur her on more than defying critics.