Defending champions Switzerland sealed a 2-1 victory over six-times winners United States that left them bottom of Group B but the result mattered little to over 14,000 fans in Perth and millions around the world who had eagerly awaited the contest.
Federer and Williams, holders of a combined 43 singles Grand Slam crowns, won their singles matches to keep the mixed doubles clash alive and the deciding match lived up to the hype it had generated as both players left the court with big smiles.
