Marin Cilic will aim to improve on his best run at the Australian Open - a semi-final appearance in 2010 - when the big serving Croatian heads to Melbourne Park.
In the first Grand Slam of 2017, Cilic lost in the second round of the Australian Open to Brit Dan Evans, and though he suffered second round eliminations at the ATP 1000 Indian Wells, Miami Open, and Madrid Open, he did reach the quarter-finals in Rome and Monte-Carlo.
In May, Cilic became the third Croatian in ATP World Tour history to record 400 match wins in Istanbul where he tasted victory on clay for the first time in five years, battling past Milos Raonic in the final.
He then reached the quarter-final of the French Open for the first time in his career before battling to the final of both Queen's, where he lost to Feliciano Lopez, and Wimbledon, where he was forced to play against Roger Federer injured.
The 2014 US Open reached a career high world No 4 in October 2017 after runs to the semi-finals of the Japan Open, Shanghai Masters and Swiss Indoors.
Cilic lost all three of his round-robin encounters at the ATP Finals in London to end his campaign in disappointing fashion and will have a new coach for 2018 after ending his partnership with Jonas Bjorkman.