Task: Question Answering
Input (English): Context_1 : The tennis players Stefan Edberg (Sweden) and Ivan Lendl (Czechoslovakia, 1978–92/United States, 1992–94) met 27 times during their careers. Edberg leads the series 14–13. In an interview with the ATP in 2008 Edberg reflected on his classic rivalries. Context_2 : Stefan Edberg and Magnus Larsson were the defending champions but only Edberg competed that year with Petr Korda. Context_3 : Stefan Edberg was the defending champion and retained his title, defeating Pete Sampras 3–6, 6–4, 7–6, 6–2 in the final to win the men's singles title at the 1992 US Open. The semifinal between Edberg and Michael Chang was a battle wherein Edberg won in five sets after 5 hours and 26 minutes, then the longest match in the Open Era. This is also where John McEnroe and Jimmy Connors played their last Grand Slams. Context_4 : Alexander "Sandy" Mayer (born April 5, 1952) is a former tennis player from the United States, who won ten titles in singles and twenty-four titles in doubles during his professional career. He was part of the winning tennis squad at Stanford University in 1973. Context_5 : Stefan Bengt Edberg (] ; born 19 January 1966) is a Swedish former world no. 1 professional tennis player (in both singles and doubles). A major proponent of the serve-and-volley style of tennis, he won six Grand Slam singles titles and three Grand Slam men's doubles titles between 1985 and 1996. He also won the Masters Grand Prix and was a part of the Swedish Davis Cup-winning-team four times. In addition he won four Masters Series titles, four Championship Series titles and the unofficial Olympic tournament 1984, was ranked in the singles top 10 for ten successive years, 9 years in the top 5, and is considered one of the greatest players of his era. Edberg began coaching Roger Federer in January 2014, with this partnership ending in December 2015. Context_6 : The tennis players Boris Becker (Germany) and Stefan Edberg (Sweden) met 35 times between 1984 and 1996. Although Becker led their overall head-to-head series 25–10 and won all three of their Davis Cup matches, Edberg won three of their four meetings in Grand Slams. Edberg and Becker also reached the world Tour Finals in 1989 which Edberg won in Four sets. Context_7 : Philip Tuckniss (born May 5, 1962) is a retired tennis player from Zimbabwe, who represented his native country as a qualifier at the 1988 Summer Olympics in Seoul, South Korea. There he lost in the second round of the men's doubles competition to Sweden's eventual bronze medalists Anders Järryd and Stefan Edberg, while partnering Mark Gurr. He has been happily married since 1997. Context_8 : Stefan Edberg and Anders Järryd were the defending champions, but Edberg did not participate this year. Järryd partnered Guy Forget, losing in the semifinals. Context_9 : The 1987 ABN World Tennis Tournament was a men's tennis tournament played on indoor carpet courts at Ahoy Rotterdam in the Netherlands. It was part of the 1987 Nabisco Grand Prix. It was the 15th edition of the tournament and was held from 16 March through 22 March 1987. First-seeded Stefan Edberg won the singles title. Context_10 : Stefan Edberg defeated Magnus Larsson 7–6, 6–1 to win the 1995 Qatar Open singles competition. Edberg was the defending champion. fact_1 : Alexander "Sandy" Mayer (born April 5, 1952) is a former tennis player from the United States, who won ten titles in singles and twenty-four titles in doubles during his professional career. fact_2 : Stefan Bengt Edberg (] ; born 19 January 1966) is a Swedish former world no. 1 professional tennis player (in both singles and doubles). Question: Who is older, Sandy Mayer or Stefan Edberg?
Output (English): Alexander Sandy Mayer