Tennis: 'Nervous' Osaka survives first test of US Open title defence, Gauff and Nadal also safely through to second round

August 28, 2019 10:17 AMNEW YORK (REUTERS) - Naomi Osaka was given a testing workout by Anna Blinkova as she began the defence of her US Open title on Tuesday (Aug 27) but the world No. 1's power and shot-making ultimately proved too much as she prevailed 6-4, 6-7 (5-7), 6-2.