Sabalenka overcomes Osaka in gripping battle to reach Madrid Open quarter-finals

• World No 1 under pressure before 6-7 (1), 6-3, 6-2 victory

• Winner will face Hailey Baptiste in next round

World No 1 Aryna Sabalenka overcame Naomi Osaka 6-7 (1), 6-3, 6-2 in a gripping battle on Monday to reach the Madrid Open quarter-finals.

Sabalenka, who has claimed titles at Miami, Indian Wells and Brisbane this year, was tested by her Japanese opponent in the fourth-round clash but came back from a set down and a break down to triumph.