Teenager Felix Auger-Aliassime rocketed up the rankings last year and hopes to make his presence felt in grand slams in 2020.
Defending champion Naomi Osaka stands as an ominous presence for her rivals as she bids to retain the Australian Open title.
The build-up to the Australian Open has been marred by concerns over dangerous air, which Denis Shapovalov is not willing to play in.
The Adelaide International final saw Andrey Rublev achieve a feat that had not been done for 16 years as he beat Lloyd Harris.
Players are concerned about their welfare as the year's first grand slam prepares to get underway in difficult conditions.
World number one Ash Barty heads to the Australian Open having ended her wait for a title in her home country.
Will Novak Djokovic land an eighth Australian Open men's singles title, or could a first-time grand slam champion be crowned in Melbourne?
Ugo Humbert edged Benoit Paire to win his first ATP Tour title at the Auckland Open.
Australian Open officials convinced Rafael Nadal when the Spaniard asked about air quality in Melbourne.
Amid air quality concerns ahead of the Australian Open, Roger Federer said he was unworried.