Serena Williams will face a challenging first-round clash with reigning US Open champion Emma Raducanu when the US tennis great's farewell tour continues at Cincinnati next week.
Williams, a 23-time Grand Slam champion, revealed this week that the "countdown has begun" to her retirement, with the 40-year-old expected to bid farewell after a final major campaign at the US Open starting later this month.
Williams won her first singles match in more than a year when she defeated Spain's Nuria Parrizas Diaz in the first round at Toronto last week.
That was before she revealed in an article in Vogue and on Instagram that she was "evolving away" from tennis.
In her first match after the announcement, Williams fell in straight sets to Switzerland's Tokyo Olympic gold medallist Belinda Bencic in the second round.
Williams faces another tough path in Cincinnati, where she is a two-time champion.
The winner of Williams-Raducanu will face either 20th-ranked Victoria Azarenka or 31st-ranked Kaia Kanepi of Estonia.