LONDON, July 5 : Novak Djokovic added another chapter to his Wimbledon legacy on Sunday as the Serb fought past Russian qualifier Roman Safiullin 7-6(6) 6-3 3-6 6-3 to earn a record 106th match victory at the All England Club and reach another quarter-final.It was far from smooth sailing for the seventh seed under the blazing sun on Centre Court, as he twice dropped serve with uncharacteristic mistakes, before saving two set points at 2-5 down to win the first set in a fiercely-contested tiebreak.World number 132 Safiullin, eyeing a major upset after months out with a hip injury, continued to test Djokovic but crashed his backhand into the net to fall behind 2-4 in the second set.Having found the opening, Djokovic quickly doubled his lead in the match with some exquisite serve-and-volley t