Sinner battles past Borges as tough start to Wimbledon title defence continues
Defending champion Jannik Sinner admitted many aspects of his game need to improve after setting up a third-round clash with Jenson Brooksby at Wimbledon
Gauff digs deep and Sabalenka channels Nadal in dramatic second round wins
American player, seeded seventh, was twice within two points of defeat against Solana Sierra of Argentina