Serbian defeats Argentine 6-3, 6-2 to strengthen his hold on top spot

World number two defeats Tunisian 6-0, 7-5 in a group-stage match

‘It is not a political message, it’s just humanity’ says Tunisian

Spanish world number two suffers 6-3, 6-4 defeat on his return from injury

World number five upsets top-ranked Sabalenka 6-4, 6-3 to reach WTA Finals semis

Brit misses match point, blows final-set lead in 7-6, 4-6, 7-5 defeat to De Minaur

Polish star beats Vondrousova 7-6, 6-0; American teen seals 6-0, 6-1 triumph

Top-ranked player claims 6-0, 6-1 win; Pegula dispatches Rybakina 7-5, 6-2

Four-time major champion could reclaim her number one spot but the Polish player said she would not dwell on that

Serbian hopes to join Nadal and Agassi to have won all four Grand Slams and Olympic single gold