Sinner, Swiatek survive challenges from Cincinnati qualifiers

Cincinnati Masters top seeds Jannik Sinner and Iga Swiatek both secured opening triumphs Wednesday over qualifiers, with Swiatek forced to escape an attempted second-round ambush by France's Varvara Gracheva.ATP number one Sinner fought off eight break points as the top seed began the Cincinnati Open with a 6-4, 7-5 triumph over US qualifier Alex Michelsen.