With the Australian Open done for 2023 and the grand slam season starts with a bang, we have some insane changes to the rankings with a new number one in Novak Djokovic who lifted his 22nd major trophy and return to the top of the rankings dethroning Alcaraz! Stefanos Tsitsipas and Aryna Sabalenka also reached a career equalling rank while Alcaraz, Medvedev and Nadal lost points and dropped in the ranks. We go through the men and women's tennis rankings for 2023.