Andre Agassi significant championships. In 1998, Agassi began a rigorous conditioning program and worked his way back up the rankings by playing in Challenger Series tournaments, a circuit for pro players ranked outside the world's top 50. After returning to top physical and mental shape, Agassi recorded the most successful period of his tennis career and also played classic matches in that period against Pete Sampras and Patrick Rafter. In 1998, Agassi won five titles and leapt from No. 110 to No. 6, the highest jump into the top 10 made by any player during a calendar year. At Wimbledon, he had
Tennis at the 2012 Summer Olympics the career Golden Grand Slam in both singles and doubles (the Williams sisters had already completed their career doubles Golden Grand Slam at the 2001 Australian Open, joining Pam Shriver in Seoul in 1988 and Gigi Fernández at the 1993 Australian Open.) Furthermore, the Williams sisters also became the first four-time gold medalists in Olympic tennis history. In the men's singles tournament final, Andy Murray beat Roger Federer in straight sets in front of a home crowd to avenge his four-set loss against Federer exactly four weeks earlier on Centre Court in the finals at Wimbledon. In doing so, he