Question: What athlete has been coached by both Paul Annacone and Stefan Edberg?

Context paragraphs:
1986 Donnay Indoor Championships – Doubles: Stefan Edberg and Anders Järryd were the defending champions, but Edberg did not participate this year.  Järryd partnered Guy Forget, losing in the semifinals.

1996 Qatar Open – Doubles: Stefan Edberg and Magnus Larsson were the defending champions but only Edberg competed that year with Petr Korda.

1993 Volvo International – Doubles: The 1993 Volvo International was a tennis tournament played on outdoor hard courts at the Cullman-Heyman Tennis Center in New Haven, Connecticut, United States and was part of the Championship Series of the 1993 ATP Tour.  The tournament ran from August 16 through August 23, 1993.  Kelly Jones and Rick Leach were the defending champions but only Jones competed that year with Paul Annacone.  Annacone and Jones lost in the semifinals to Cyril Suk and Daniel Vacek.  Suk and Vacek won in the final 7–5, 6–4 against Steve DeVries and David Macpherson.

1987 Australian Open – Men's Doubles: Paul Annacone and Christo van Rensburg were the defending champions, but lost in the semifinals to Swedes and top seeds Stefan Edberg and Anders Järryd.

Paul Annacone: Paul Annacone (born March 20, 1963) is an American former touring professional tennis player and current tennis coach.  He is the former coach of open-era leader in Grand Slams Roger Federer and former World No. 1 Pete Sampras.  Annacone is currently a coach at ProTennisCoach.com and a commentator at Tennis Channel

Becker–Edberg rivalry: 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.

Stefan Edberg: 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.

1995 Qatar Open – Singles: Stefan Edberg defeated Magnus Larsson 7–6, 6–1 to win the 1995 Qatar Open singles competition.  Edberg was the defending champion.

Edberg–Lendl rivalry: 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.

1992 US Open – Men's Singles: 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.

Supporting paragraphs: Paul Annacone Stefan Edberg
Answer: Roger Federer