Australian Open: Nick Kyrgios returns from 'dark place' to beat Gilles Simon

*Melbourne:* Showman Nick Kyrgios admitted Thursday he was on the verge of going "to a very dark place", but he put his head down to pull off a confidence-boosting win over Frenchman Gilles Simon at the Australian Open. The 24-year-old had the measure of the veteran early on then lost concentration and became agitated before...