LONDON (AP) — Petra Kvitova wasted no time as she opened the defense of her Wimbledon title in overpowering fashion.Winning 28 of 29 points on serve, the two-time champion needed only 35 minutes to overpower Kiki Bertens of the Netherlands 6-1, 6-0 in Tuesday’s opening match on Centre Court.The only point Kvitova lost on serve came when she double-faulted on the first point of the final game, hitting a 93 mph (150 kph) second serve just wide. She won the next four points, finishing — appropriately — with a service winner.In keeping with Wimbledon tradition, Kvitova had the honor of playing the first Centre Court match on the second day as the reigning champion.“It was a great feeling,” said the second-seeded Czech, who also won the title in 2011. “I have so many nice memories.