Russian and Belarusian players will not be allowed to compete at this year’s Wimbledon, according to reports.
Tournament organisers are set to impose the ban due to the invasion of Ukraine.
Players from the two countries have so far been permitted to continue taking part on the tennis tour but under a neutral flag and with no anthem played.
Wimbledon is scheduled to run from Monday, June 27 to Sunday, July 10.
According to reports, the All England Club will confirm the ban later on Wednesday.
Wimbledon officials have been in ongoing talks with the UK Government regarding the situation, in addition to a number of other bodies, including the Lawn Tennis Association.
US Open champion Medvedev reached the fourth round of Wimbledon last year, while Sabalenka was a beaten semi-finalist.
Russian world number 15 Anastasia Pavlyuchenkova and Belarus’ Victoria Azarenka – a two-time Australian Open champion – will also miss out, along with men’s world number eight Andrey Rublev.
Players from the two countries will still be permitted to enter the French Open, which begins next month.
