Tennis Tennis Sinner outlasts McDonald to win Washington Open title Sinner, who was the first Italian finalist in this tournament's 52-year history, also became the event's third-youngest champion, behind Andy Roddick in 2001 and Juan Martin del Potro in 2008. AP 09 August, 2021 06:32 IST Sinner lifts the Washington Open title on Sunday. - AP AP 09 August, 2021 06:32 IST Jannik Sinner became the first teenager to win an ATP 500 event, beating Mackie McDonald 7-5, 4-6, 7-5 to take the Citi Open title Sunday.Sinner, who turns 20 on August 16, won his third ATP title and second this year. He was the first Italian finalist in this tournament's 52-year history, and he became the event's third-youngest champion, behind 18-year-old Andy Roddick in 2001 and 19-year-old Juan Martin del Potro in 2008.McDonald, a 26-year-old American playing in his first ATP final, made the fifth-seeded Sinner work. The second set was the first that Sinner dropped in this tournament, and after the Italian went up a break early in the third, McDonald battled back.ALSO READ | Rutuja-Magali pair loses in doubles final Sinner failed to convert two match points while up 5-2, and McDonald fought all the way back to 5-all before eventually falling short. Sinner broke McDonald's serve again to end the match, winning it when McDonald's backhand went into the net on the final point.Although Sinner took the first set, McDonald set the tone for the match by fighting off 10 set points. Six of those came with Sinner up 5-4, and the other four were at 6-5. McDonald had his serve broken three times in the set, and Sinner had his broken twice.In the doubles final earlier, Raven Klaasen of South Africa and Ben McLachlan of Japan beat Neal Skupski of Britain and Michael Venus of New Zealand 7-6 (4), 6-4. Read more stories on Tennis. For more updates, follow Sportstar on :