Serena Williams isn’t the only tennis star making a comeback. Nick Kyrgios , who has 23 fewer major singles titles than the GOAT, made his own triumphant return to the court this week. Kyrgios picked up his first singles win in 15 months on Tuesday as he defeated Corentin Moutet 6-3, 6-4 in 68 minutes at the BOSS Open in Stuttgart, Germany. Kyrgios had been sidelined in singles action due to injuries. “Confident isn’t a word I’m feeling just yet … I’ll see how I feel tomorrow,” Kyrgios told beIN Sports Australia after beating Moutet. “I’ve had a wrist re-construction, I’ve had four knee surgeries. So I’m really battling but at the same time I’ve been putting in a lot of work. I’m feeling really good about myself … I’ve got so many fans … there were so many times where I was thinking, ‘why am I playing?, what more do I need to do?’ but I look at [my fans in attendance] and know this is why I’m playing.” Moutet came into the match as world No. 36. Kyrgios doesn’t have an active ATP ranking due to inactivity.…