At the age of 19, Nick has already played in the main draw of several GS events reaching the QF's of 2. A good portion of his ranking points have come from GS's and he's only played in 4 ATP events. Only winning 1 match in them (Toronto 2014 vs Giraldo). So in Kyrgios's career will he be more geared towards the slams only? Or has this been the case for him because of injuries forcing him to only compete in the slams? Discuss.