Nick Kyrgios believes tennis needs a shake-up, and he’s proposed some drastic new ideas to overhaul the game. The former Wimbledon finalist has long believed the sport needs to appeal to younger fans. Earlier this year, he claimed tennis had become “mundane.”

Australia’s Nick Kyrgios has called for the Miami Open to become the fifth Grand Slam in a calendar year. Every year, four major events are played in professional tennis.