RIO DE JANEIRO, Feb. 20 (Xinhua) -- Spanish top seed Carlos Alcaraz abandoned his Rio Open first round match against local favorite Thiago Monteiro on Tuesday due to a right ankle injury.
The two-time grand slam winner rolled his ankle in the opening game of the clash on the Jockey Club Brasileiro's center court.
He initially played on and broke Monteiro's serve, but the Brazilian broke back in the next g