36-year-old split with Goran Ivanisevic after Indian Wells

Spaniard says ‘There are some days that I wake up and I'm not feeling that well and I ask myself, 'Is this worth it?'

La Roja earned the World Team of the Year award for winning the competition for the first time in their history

World number one has pulled out of the Madrid Open three times in four years

World number six ended a 10-match winning streak for the Greek

Spaniard beat Serena Williams to claim first Grand Slam title and then beat Venus Williams in 2017 to win Wimbledon

Defending champion beat unseeded Belgian 6-3, 6-4 to capture a third successive title in the German city

37-year-old beats Cobolli 6-2, 6-3 in the first match since January

Briton seals 3-1 win with 6-4, 1-6, 7-6 (1) victory over Diane Parry

Spaniard will play 63rd-ranked Flavio Cobolli in his opening match next week