Gallery: A roasting semi-final day at the 2019 Australian Open

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Rafael Nadal photo

It was another action-packed and roasting hot day at the Australian Open, with semi-finals featuring Naomi Osaka, Rafael Nadal, and Stefanos Tsitsipas.

The first semi-final of the day was interrupted as extreme heat forced play to be suspended for the roof to be closed.
Petra Kvitova waiting

Which, as ever, was an excruciatingly slow yet satisfying process.
Australian Open roof closing

But it made for some fun indoor tennis, with Petra Kvitova certainly feeling the benefit.
Australian Open indoors

There was plenty of celebrity interest, as usual.
Nicole Kidman at Australian Open

And they saw a bagel as Kvitova overpowered Danielle Collins to reach her first Australian Open final.
Petra Kvitova and Danielle Collins

Naomi Osaka and Karolina Pliskova was next up for the souvenir picture snappers.
Australian Open camera

As usual, the stage did not disappoint.
Naomi Osaka Australian Open

And neither did an angelic-looking Osaka.
Naomi Osaka angelic

Although once Pliskova got her serve going, we had a proper match on our hands.
Karolina Pliskova serving at Australian Open

Pliskova started to struggle.
Karolina Pliskova feeling the heat

Osaka kept plugging away and eventually won in three sets.
Naomi Osaka in action

Could Stefanos Tsitsipas do to Rafael Nadal what he did to Roger Federer?
Stefanos Tsitsipas in action

Nadal was in a ruthless mood.
Rafael Nadal on the run

You gotta have one of these.
Rafael Nadal photo

The 17-time Grand Slam winner brushed the 20-year-old aside in three sets.Rafael Nadal celebrates

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