PERTH, AUSTRALIA - DECEMBER 30: Kevin Anderson of South Africa plays a forehand in his singles match against John Isner of the USA during day two of the Hopman Cup at Perth Arena on December 30, 2012 in Perth, Australia. (Photo by Paul Kane/Getty Images)

Perth, Australia – Kevin Anderson of South Africa has defeated American John Isner 7-6 (0), 7-6 (5) to take their Hopman Cup encounter to a deciding mixed doubles.

Venus Williams, playing her first match since winning the Luxembourg title in October, defeated South Africa's Chanelle Scheepers 4-6, 6-2, 6-3 earlier Sunday to give the United States a 1-0 lead.

In the second match Sunday, the French combination of Jo-Wilfried Tsonga and Mathilde Johansson will face Spain's Fernando Verdasco and Anabel Medina Garrigues. Spain won its opening match Saturday over South Africa. – Sapa-AP