Novak Djokovic has preserved his unbeaten ATP Cup record to keep Serbia's title defence on track with a spirited three-set win over German star Alexander

Novak Djokovic has preserved his unbeaten ATP Cup record to keep Serbia's title defence on track with a spirited three-set win over German star Alexander
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SportsLine’s model analyzes Red Bull’s Max Verstappen and Yuki Tsunoda as they debut the White …
The mixed-team tournament featuring squads from Italy, France, Spain, Greece, Canada and reigning champion Croatia …