Juan Martín del Potro claimed his first title since January 2014 by beating Jack Sock in straight sets to be crowned Stockholm Open champion. Del Potro has endured an injury-ravaged couple of years, but the powerful Argentine has showed great character to demonstrate what he is capable of after returning this season and was rewarded with a long-awaited tournament victory on Sunday. Del Potro took four of the nine break point opportunities that came his way, denying the world number 23 from the United States a second ATP singles title.
By John O'Brien SINGAPORE (Reuters) - Simona Halep got her WTA Finals campaign off to a perfect start on Sunday when the Romanian world number four dominated an erratic Madison Keys to race to a 6-2 6-4 victory in the opening match of the tournament. With German top seed Angelique Kerber taking on Slovak Dominika Cibulkova in the second Red Group encounter later on Sunday, Halep proved that she will be a formidable opponent at the elite eight-woman event at the Singapore Indoor Stadium. "It's always the same with Madison... she's very strong and hits the ball hard so it's tough to match her power," said Halep.
Pablo Carreno Busta of Spain came back from a set down to beat Italy's Fabio Fognini and win the Kremlin Cup on Sunday. Carreno Busta won his second career title 4-6, 6-3, 6-2 despite having a medical timeout for a leg strain midway through the second set, though he said the injury was not serious. Fognini saved two match points in the final game before Carreno Busta secured the win, dropping to his knees in celebration.