- Sport: Olympic Tennis
- Nation: Chile
- Notes: Turned in one of the most memorable performances in Olympic tennis history by winning gold medals in singles and doubles
in the 2004 Athens Games. ... Massu defeated Mardy Fish in five sets to win the singles final after he upset third-seeded
Carlos Moya in the quarterfinals and Taylor Dent in the semis. ... Earned the doubles title in Athens partnering with Fernando
Gonzales to beat Germany's Nicolas Kiefer and Rainer Schuttler in the final. ... The unseeded duo had upset top-seeded Mike
Bryan and Bob Bryan in the quarterfinals. ... Also played singles in the 2000 Sydney Olympics, losing in second round. ...
Carried Olympic flag in 2000 Sydney Games for Chile during the opening ceremonies. ... Highest career singles ranking was
No. 9 on Sept. 13, 2004. ... Owns five career ATP Tour singles titles (2006 Costa Do Sauipe, 2004 Kitzbuhel, 2003 Amersfoort
and Palermo, 2002 Buenos Aires). ... Has never won a doubles event other than his Olympic title.