Australian Open quick hits: Iga Świątek’s double-bounce, Lorenzo Sonego’s miracle volley and an all-Aussie final

A missed double-bounce call has raised questions over the Australian Open’s lack of Hawkeye, an unseeded Italian hits one of the shots of his life and we have an all-Australian mixed doubles final.

Here are the quick hits from day 11 of the Australian Open.

1. Double trouble