NEW YORK - Former world number one Martina Hingis, who had her Grand Slam comeback after six years of retirement cut short on Friday with two doubles defeats, is still not planning a return to the singles ranks. "Give me a break," Hingis said. "No, I haven't given any more thought to it. I have a hard enough time covering half of the court." The 32-year-old Swiss winner of five Grand Slam singles titles suffered first-round losses in women's doubles and mixed doubles at the US Open. Hingis and Slovakian partner Daniela Hantuchova lost to Italian top-seeded defending champions Sara Errani and Roberta Vinci 6-3, 7-5 in women's doubles, with Hingis double faulting away the final points. "The draw didn't help to play the champion number one seeds," Hingis said. –AFP