Live updates from all the action at Melbourne Park
Dramatic day two marred by retirements | Email Katy

And here’s Jack Snape on that big disappointment for Joint. At 19, though, there’ll be many more chances for the US-born Australian, who was the first home player seeded in the women’s singles since Ash Barty four years ago:

Maya Joint has vowed to return to the Australian Open stronger, after the top-ranked local in the women’s singles draw crashed out in the first round on Tuesday with a straight sets defeat to Czech teenager Tereza Valentova.

Valentova made the most of an inconsistent display from the 30th seed, winning 6-4, 6-4 in 92 minutes.