37-year-old has not played an ATP tournament since January due to a muscle issue
Russian world number four will be contesting his first tournament since the Australian Open this week in Dubai
Indian pair upset Pakistan duo Aqeel Khan and Muzammil Murtaza 6-2, 7-6
37-year-old Spaniard signs up as tennis ambassador for the Saudi Tennis Federation
Former US Open champion beat her Czech opponent 7-5, 6-3 in straight sets
Tennis star continues to struggle for fitness, calls decision ‘heartbreaking’
Polish star battles past Garcia in China Open, American teen dispatches Sakkari
Serb beats Hurkacz 7-6, 7-6, 5-7, 6-4 to reach quarters; Spaniard overcomes Berrettini 3-6, 6-3, 6-3, 6-3
World number four believes Gulf state can help WTA ensure equal prize money
World number two beats 16-year-old Russian 6-3, 6-1 to reach quarter-finals