From a few hours ago:

"Commonwealth Games: Fifty athletes in Australia 'illegally'
Around 50 competitors have remained in Australia illegally after going missing during this year's Commonwealth Games, a government official has said.

Nearly 200 others hold bridging visas and are applying for refugee status."
www.bbc.com/news/world-australia-44194069?SThisFB

BTW we seem to have two threads about this topic from the 11th of April
bigmango.boards.net/post/154162/thread

Even more interesting is a remark about Brussels possibly prohibiting such games and lucky Britain leaves. I guess more likely the games will no longer be performed in Britain as post-Brexit no one deemed a risk gets a visa