Duo, the green cartoon owl mascot for language learning app Duolingo, has mysteriously died, and singer Dua Lipa is grieving.

The Australian Open doesn’t have full broadcast rights for all matches. So, its YouTube livestream uses AI to generate Nintendo Wii Tennis cartoon avatars that mimics the action on a 2-minute delay.

But the scores are spot on. This cartoon is the Australian Open's free-to-watch version of the live action taking place at Melbourne Park. How has this come about? The Australian Open's official ...