Raonic has long been earmarked as the next man to break his major duck and reached his first major final at the All England Club in 2016 where he was beaten in straight sets by Andy Murray.
Raonic saw his form improve dramatically after recruiting John McEnroe onto his coaching team, the seven-time Grand Slam winner tasked with turning good performances into title victories but the pair have since gone their separate ways.
Aside from the Wimbledon defeat, Raonic also reached the last four at the World Tour Finals and finished the year at a career-high third in the world rankings.
He has reached the last eight in each of the last two years at Melbourne, indeed last year Murray had to come from behind to beat a tiring Raonic in five sets to reach the final.
Last year began with victory in Brisbane but that proved to be his only tournament success and he will need to put niggling injury concerns behind him and add a winning mentality if he is to make the grand slam breakthrough.