During a qualifying match for the Cincinnati Open between Russian players Anna Kalinskaya and Anastasia Potapova on Sunday, one of the players reportedly complained to the WTA chair umpire Morgane Lara about the fan, according to reports.
Video of the incident posted online showed Lara come down from her chair to speak to the fan, who ultimately left the court. She reportedly was approached on the grounds by the tournament's head of security, who told her the flag was above regulation size.
"Per the Western & Southern Open's bag policy, as stated on the tournament's website, flags or banners larger than 18 x 18 are prohibited," a spokesperson for the tournament said in an email.
"Therefore, the patron was asked to remove the flag from the grounds and after doing so was allowed to remain at the tournament.
"Any inquiries about the chair umpire should be directed to the WTA Tour."
The WTA Tour did not respond to a request for comment.
Russia invaded Ukraine on February 24th, calling it a "special military operation" aimed at pre-emptively safeguarding its security against NATO expansion. Ukraine and the West accuse Moscow of waging an unprovoked imperial-style war of aggression.
In response, Wimbledon banned Russian and Belarussian tennis players from the grass court major this year.
The US Open, which starts on August 29th, will allow players from those countries to compete and will host a tournament-long campaign to raise awareness and humanitarian aid for Ukraine with a goal of raising $2 million in relief, the United States Tennis Association (USTA) said last week.
