Carlos Alcaraz forced to retire from the first round in Rio de Janeiro. The Spaniard twisted his right ankle in the first set against Thiago Monteiro.
The 20-year-old had a difficult start to 2024, including a four-set defeat against German Alexander Zverev in the quarter-finals of the Australian Open. He lost to the Chilean Nicolas Jarry in the semi-final in Buenos Aires and has not won an ATP title since his triumph at Wimbledon last July.