Australian Open day 6 must-see match-ups

By Ben McKay
Updated January 18 2019 - 6:21pm, first published January 17 2019 - 6:00pm
The youngest man left in the Australian Open, Aussie Alexei Popyrin, will be in action on day 6.
The youngest man left in the Australian Open, Aussie Alexei Popyrin, will be in action on day 6.

MATCHES TO WATCH ON DAY SIX OF THE AUSTRALIAN OPEN