Djokovic avoids exit, Serena steps closer

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LONDON — Top seed Novak Djokovic on Tuesday completed a dramatic comeback to post a 6-7 (6-8), 6-7 (6-8), 6-1, 6-4, 7-5 victory again Kevin Anderson and reach the Wimbledon quarterfinals. ADVERTISING LONDON — Top seed Novak Djokovic on Tuesday