Venus Williams gave herself a boost ahead of the Australian Open by winning the ASB Classic — while sister Serena slumped to defeat. Venus, 34, beat Caroline Wozniacki 2-6, 6-3, 6-3 in Auckland — her first win since February. The seven-time grand slam winner said: ‘Caroline is just so fit and I know that I need to up my levels.’ Serena lost 6-4, 6-7, 6-1 to Agniesza Radwanska as Poland beat the USA to win the Hopman Cup in Perth. Venus Williams poses with the trophy after winning the ASB Classic in Auckland . Williams hits a return against Dane Caroline Wozniacki on Saturday ahead of Australian Open . Wozniacki looks frustrated after losing a point against Williams in the final .
Venus WIlliams beat Caroline Wozniacki 2-6, 6-3, 6-3 in Auckland . Williams said: 'Caroline is just so fit and I know I need to up my levels.’ Sister Serena lost 6-4, 6-7, 6-1 to Agniesza Radwanska in Hopman Cup .