HONG KONG - Carla Suarez Navarro handed injury-hampered Andrea Petkovic the first 6-0, 6-0 "double bagel" of her top-level career Wednesday in the simplest of wins at the WTA Elite Trophy. The Spaniard was on court for just 51 minutes against Germany's Petkovic, who was troubled by a knee problem. Both players looked downcast as they came off the court and Suarez Navarro described it as a "sad" win, praising 24th-ranked Petkovic for not retiring from the match. "I really appreciate the fight because she was on court all the time," said the Spaniard. "She didn't retire. She played not only for her -- she played also for the fans, for me." Earlier Roberta Vinci beat Svetlana Kuznetsova 6-4, 6-4, and third seed Karolina Pliskova overcame former world number one Jelena Jankovic 6-4, 3-6, 6-2.