As temperatures exceed 40 degrees celcius on day four of the Australian Open, Catherine & David question why on earth the heat policy wasn't invoked, and indeed whether there should even be a heat policy (some merciless people seem to think there shouldn't!).
They also analyse those that survived the withering conditions - including a warrior-like Novak Djokovic, who 'out-bluffed' Gael Monfils in the heat of the day - and those that didn't, including third seed Garbina Muguruza, seventh seed David Goffin and Britain's Jo Konta.
The Australian Open will be live on Eurosport from midnight, with radio commentary available on BBC Radio 5 Live Sports Extra.
The Tennis Podcast will be produced daily throughout the Australian Open, in association with Telegraph Sport and Eurosport.
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