Not sure how I feel about that - they're representing themselves, not their nation, as they would be at the Olympics, Commonwealth or Davis cup, for example.

There's a difference between "banning people from Russia" and "banning people who represent Russia"

Equally, I'm all in favour of banning the Russian national team from playing rugby matches at the moment. I'm not in favour of banning their players playing for non-Russian club teams. Granted it's less clear cut in solo events like tennis, but I think it's still a good guide. (That Russian F1 driver is a different matter, as IIRC he's the son of a sanctioned oligarch; and the podium includes flags and anthems)