Ukrainian Alexandr Dolgopolov upset favorite Kei Nishikori 7-6(4) 6-4 in the tennis finals to win the Argentina Open on Sunday and got his first title in five years. This was reported by Reuters.
The 28-year-old Dolgopolov, who took one hour and 40 minutes to win the final at the Buenos Aires Lawn Tennis Club, earned his first victory over the Japanese world number five at the sixth attempt.
Dolgopolov, the world number 66, lifted his third career ATP title by going through the claycourt tournament without dropping a set.
"I'd never won even a set against Kei, let alone a match. I'm really happy to have done so," Dolgopolov told reporters.
"I played really well and I'm at my best level for the last two years. I'm really glad to be back."
The Ukrainian, whose previous crown came at Washington in 2012, the year of his career-high ranking of 13th, went toe-to-toe with Nishikori in a long first set that he clinched 7-4 in the tiebreak with his second set point.
He then broke his opponent for the first time when they were 3-3 in the second set with a winner from his potent backhand and went on to take victory with his first match point.
Earlier it was reported that Ukrainian Marta Kostyuk won Junior Australian Open. Kostyuk defeated top seed French Open champion Rebeka Masarova in final.