Novak Djokovic and Jannik Sinner headline a bumper day five at the Australian Open, while the combustible Nick Kyrgios makes his first appearances of the tournament at Melbourne Park. Here's our Day 5 live blog.

Stan Wawrinka unleashes a trademark backhand which fizzes cross-court. Two break points. It's a lacklustre second serve from Sorana Cirstea and Naomi Osaka takes advantage, replying with a backhand winner down the line. It's two service games for the loss of just two points so far for Jannik Sinner.

Novak Djokovic and Madison Keys were among those to make serene progress on day five of the Australian Open. Djokovic had few troubles in seeing off qualifier Francesco Maestrelli while defending women’s champion Keys was an equally emphatic winner against American compatriot Ashlyn Krueger.

Follow The Athletic’s Australian Open coverage Welcome to the Australian Open briefing, where The Athletic will explain the stories behind the stories on each day of the tournament. On Day 5, the Australian Open came to life in a mad few hours,