SHANGHAI, Oct. 9 (Xinhua) -- World No. 1 Jannik Sinner beat American Ben Shelton with a 6-4, 7-6 (1) straight-set win in the fourth round of the ATP Shanghai Masters on Wednesday.
In the opening set, facing an aggressive start from Shelton who created two break points at 2-1, Sinner showed his resilience. In the ninth game, the Italian finally found an opportunity to embrace his first break point of the match an
