FILE - Jannik Sinner of Italy holds the Norman Brookes Challenge Cup aloft after defeating Daniil Medvedev of Russia in the men's singles final at the Australian Open tennis championships at Melbourne Park, in Melbourne, Australia, Sunday, Jan. 28, 2024. Sinner made his debut at No. 1 in the ATP rankings on Monday, June 10, moving up one spot to replace the injured Novak Djokovic. (AP Photo/Asanka Brendon Ratnayake, File)