(13) Milos Raonic
The rising Canadian star is the dark horse pick of many pundits for this year's tournament.
A booming serve and heavy groundstrokes make him a formidable opponent but it is the former stroke which is his biggest weapon.
Raonic topped several serving stats tables in 2012, including service games won (a massive 93 per cent).
To be fair, his talent has been known for some time. He was ATP Newcomer of the Year in 2011 but has yet to make the breakthrough at Grand Slam level yet - the last 16 being his best effort.
A good draw Down Under could see him progress to the quarter-finals but challenging the very best now seems unlikely, especially after an early-round loss in Brisbane.