year-end top 10 twice (2004–05). Over the course of his 15-year career, Gaudio collected three doubles and eight singles titles on the main circuit, among which one French Open title (2004, def. Coria, saving two match points in the final) – the only time the Argentinian went past the fourth round in a Grand Slam event. After four years spent out of the Top 100, Gaudio chose to retire from the sport. He played his last match at the Kitzbühel Challenger in August 2010. Óscar Hernández (born 10 April 1978 in Barcelona, Spain)'arrived on the main tour in 1998, peaking at the no. 48 spot in singles in 2007. Hernández, winner of one doubles titles on the main circuit, decided to retire after complications following a spinal disc herniation operation. He played his last match at the Naples Challenger in September 2010. Joachim Johansson (born 1 July 1982 in Lund, Sweden) turned professional in 2000, and reached a career high of no. 9 in singles in 2005. Winner of three singles and one doubles titles, the six-foot six's best Grand Slam performance came with a semifinal appearance at the US Open (2004). His career stuck by shoulder and elbow injuries, Johansson opted for retirement in early 2008 before deciding for a comeback later in the season. He played his last match at a Swiss ITF Men's Circuit event in March. Stefan Koubek (born 2 January 1977 in Klagenfurt, Austria) joined the main tour in 1994 and peaked at no. 20 in singles in 2000. The Austrian collected three singles and one doubles titles on the circuit, his best Grand Slam result coming with a quarterfinal showing at the Australian Open (2002). Koubek played his final tournament in Kitzbühel in August. Nicolás Lapentti (born 13 August 1976 in Guayaquil, Ecuador) turned professional in 1995, and reached his highest singles ranking, no. 6, in late 1999. Boys' doubles champion at the French Open and at the US Open in 1994, Lapentti went on to collect five singles and three doubles titles on the main circuit, his best Grand Slam results coming with a quarterfinal at Wimbledon (2002) and a semifinal at the Australian Open (1999). He played his last match at the French Open in May 2010. Harel Levy (born 5 August 1978 in Ramat HaSharon, Israel) became a tennis professional in 1995, reaching his career-best singles ranking of no. 30 in