It would be hilarious watching the British media and Wimbledon trying to deal with that
It only seems to be a problem for Wimbledon's tournament administrators. The majority of the British public and the media don't have a problem with tennis players (or any other personalities) from Russia or Belarus. They can distinguish between Russian political activists or sympathisers and otherwise ordinary citizens who happen to be from there. It's the sporting authorities who are getting themselves tied in knots unnecessarily over this.
The only group of Russians that the media have been concerned with (rightly), are the oligarchs and millionaires/billionaires who the Conservative party used to suck up to, who bought up lots of properties in London and who have become a source of embarrassment to the government these days! https://unherd.com/2023/04/britains-oligarchs-are-stuck-in-limbo/