Paribas open

Italian Jannik Sinner: Top seed Carlos Alcaraz suffered an ankle injury just two points into his Rio Open opening-round match against Thiago Monteiro and retired shortly after despite a valiant attempt to continue the match.

After hitting a forehand return, Alcaraz was moving laterally back towards the centre of the court when Monteiro went back in behind him. The Spaniard planted his right foot to halt his momentum, but his right ankle rolled badly and he fell to the ground on his backside, according to tournament website.

With Monteiro’s help, the Spaniard made his way back to his bench and had his ankle heavily strapped by ATP physio Alejandro Resnicoff. He returned to the court and broke the Brazilian to take a 1-0 lead. But his movement was compromised and he retired after dropping serve in the next game.