In 2023, for the first time, four ATP players earned $US10 million ($A14.8m) within a year. Novak Djokovic, despite missing out on a bonus, topped the ATP prize money chart with $15,952,044. The bonus pool, which is allocated to the top 30 players based on the points earned in Masters 1000 and ATP Finals, helped two of his rivals go past the $10 million mark. Carlos Alcaraz earned $4.5 million from the bonus pool, Daniil Medvedev earned $2.3m, and Jannik Sinner earned $2.1m. The rules preventing Djokovic from sharing in the pool were criticised by his supporters. Meanwhile, leading coach Patrick Mouratoglou has questioned the fitness of the next generation of tennis stars and is doubtful if they can match the achievements of the ‘Big Three’ – Roger Federer, Rafael Nadal, and Novak Djokovic. He emphasized that the young players must focus on their fitness to achieve similar feats. Mouratoglou also predicted that Nadal will be a ‘danger’ to anyone at the Australian Open despite being on a comeback after injury. Nadal’s coach Carlos Moya has expressed concerns about how the Spaniard will cope with the rigours of grand slam tennis.