The Australian Open gets under way at Melbourne Park on Monday with a host of intriguing match-ups.
Here, Press Association Sport picks out eight of the best.
Roberto Bautista Agut v Andy Murray
All eyes will be on Melbourne Arena for what could be Murray's last professional match. While his mind and most of his body are still more than willing, his right hip leaves him severely compromised. Spaniard Bautista Agut, in form and one of the biggest grinders on tour, offers a formidable challenge.
Kyle Edmund v Tomas Berdych
As the 13th seed, Edmund would have hoped for a kind draw, but his luck was out. Last year's semi-finalist will face former top-10 stalwart Berdych, whose ranking has dropped to 57 after back problems saw him miss the second half of last season.
Nick Kyrgios v Milos Raonic
Kyrgios' poor results have caused the Australian's ranking to plummet outside the top 50, making him one of the key unseeded floaters in the draw. His name landed next to 16th seed Raonic, a former semi-finalist in Melbourne.
Marin Cilic v Bernard Tomic
The other Australian 'bad boy' also has a high-profile first-round match against last year's runner-up Cilic. Tomic failed to qualify 12 months ago but has climbed back into the top 100.
Simona Halep v Kaia Kanepi
Halep goes into the tournament as world number one and last year's beaten finalist but the Romanian is also on a five-match losing streak, including a first-round defeat by big-hitting Estonian Kanepi at the US Open.
Alison Van Uytvanck v Caroline Wozniacki
Wozniacki defeated Halep to win a long-awaited first slam title here 12 months ago but the rest of 2018 was a struggle and in October she revealed a diagnosis of rheumatoid arthritis. Belgian Van Uytvanck is not at her best on hard courts but has proved capable of big wins.
Destanee Aiava v Madison Keys
American Keys has reached at least the quarter-finals at four of the last five slams but could face a stern first test against exciting 18-year-old Australian wild card Aiava.
Sloane Stephens v Taylor Townsend
Stephens' last six grand slams have yielded one title, one final, one quarter-final and three first-round exits, which rather sums up the fifth seed's unpredictability. In the first round here, she takes on one of the most stylish players in the draw in fellow American Taylor Townsend.
