Carlos Alcaraz and Jannik Sinner received a total of $1.2 million each as professional service fees for participating in the ATP 500 tournament in Doha, a significant financial incentive alongside their sporting commitments. The Doha tournament, which has evolved from an ATP 250 to an ATP 500 event in 2025, features top players including Alcaraz, Sinner, Rublev, Medvedev, and Tsitsipas, with Sinner favored to win the title. Alcaraz, recently crowned world number one after winning at Melbourne, is seen as a favorite to claim victory in Doha, where he recently trained under challenging windy conditions. Meanwhile, Sinner aims to reclaim the world number one ranking and continues his preparation on fast courts, despite setbacks at the Australian Open. The tournament's prize money for the champion is approximately $530,000, nearly double what players earn at the Buenos Aires ATP event. The event's history includes legends like Federer and Djokovic, and its recent upgrade to ATP 500 status reflects its prestige. In other ATP 500 tournaments, attention is on the Rio Open, where Sebastián Báez is considered a strong contender after winning the past two editions, and on the Delray Beach event in the United States, with Taylor Fritz among the favorites. Alcaraz is also preparing for his first-round match against Rinderknech, with weather conditions and fan support playing a role in his warm-up sessions. The week promises exciting tennis action across these tournaments, with top players eager to gain points and prize money.