I try to play tennis a few days a week. I also watch lots of matches on YouTube. My favorite player to watch is Nick Kyrgios. If you don't know him, Kyrgios is an Australian player with one of the best serves in the game. His first serve averages 130mph, 10mph better than the average pro, while he barely slows down for the second serve at 124mph, exceeding peers by 25mph. He is also the poster child for unfulfilled potential. Despite his dominating serve and incredible skill