During his Australian Open qualifying victory over Jurij Rodionov, Great Britain's Dan Evans pulled off one of the most remarkable shots we can remember seeing. Jo-Wilfried Tsonga looms as a potential second-round opponent in a possible rematch of their AO 2008 decider.
Roger Federer and Novak Djokovic are each aiming for a record seventh men's Australian Open title and the draw has ensured they can't play each other at Melbourne Park until the final. I played him in his prime when he was virtually unbeatable.
"For me, it was important not to get frustrated by it but I've always enjoyed my matches against Novak".
Two-time champion Victoria Azarenka was also among the most notable unseeded players to be placed in the top half of the draw as well, as she will face Laura Siegemund first up as a potenial third-round foe for Osaka.
"The hip is incredibly difficult to come back from for especially a tennis player and someone that has worked as hard as he's worked, put the miles on", ESPN tennis pundit Patrick McEnroe said.
One of the most intriguing men's first-round matches features 2016 Wimbledon finalist Milos Raonic against mercurial Australian Nick Kyrgios, who is unseeded after his ranking slid from 13 into the 50s, but has tour-level wins over Federer, Nadal and Djokovic to his credit.
Three-time grand slam victor Andy Murray has a tough clash with 22nd-seeded Spaniard Roberto Bautista Agut as he returns from a hip injury.
Kerber will open against Slovenia's Polona Hercog, while No.3 seed Wozniacki will face Alison van Uytvanck first up to begin her title defense.
Murray, 31, is on the comeback trail after missing 11 months with a hip injury which has seen him slump to 230 in the world.