ATP Cup: Rafael Nadal wins, but not in fine fettle

*Sydney:* Rafael Nadal and Novak Djokovic kickstarted their build-up to the Australian Open with straight sets wins at the ATP Cup Saturday, but World No. 4 Dominic Thiem slumped to defeat. Top-ranked Nadal had little trouble with Georgia's Nikoloz Basilashvili, racing to a 6-3, 7-5 victory, while long-time rival Djokovic was...