DNA: Defending champion Saina Nehwal inched closer to a third successive Indonesian Open Super Series title after advancing to the finals with a hard-fought victory over Chinese Taipei's Shao Chieh Cheng here today.The fourth-seeded Indian won 21-14 14-21 21-17 in a 45-minute battle against giant-killer Cheng, who had created quite a flutter by upstaging top seed Shixian Wang and seventh seed Xin Liu earlier in the tournament.Nehwal had to dig deep in her armoury and rely on her power-packed smashes to outpace Cheng, who is known for her fast movement on court."I have seen her play in many tournaments. She is a very talented and hard working...