Fiery Australian Nick Kyrgios plans to make a comeback at Abu Dhabi in December with his goal to win a Grand Slam and “shut up” those who doubt him. 

The one-time world number 13 has played just one ATP Tour singles match in two years after suffering knee, foot and wrist injuries. The 29-year-old has hinted at retirement several times, but said that he would return for the World Tennis League event in December before a tilt at the Australian Open in January.