Emma Raducanu braved a back issue to move through to the third round of the Australian Open for the first time, defeating the big-hitting American Amanda Anisimova in straight sets.

Emma Raducanu battles more injury problems to reach Australian Open third round - The 22-year-old received treatment for a back issue during her 6-3 7-5 victory over Amanda Anisimova

If you look at the world rankings, which have Raducanu at No 61 and Swiatek No 2, you would expect this to be a straightforward result. But with Raducanu up to No 13 in the overall rankings and 19 in the hard-court ones, you might think the match would be a little closer.

Here are three questions after Iga Swiatek needed just an hour to advance to the third round of the. She'll face a familiar foe next.

Iga Swiatek rushed through her first set in 26 minutes and completed her 6-0, 6-2 second-round win over Rebecca Sramkova in an hour at the Australian Open

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