In his first tournament, he reached the quarter-finals of the Manchester Challenger. In September, Murray won his first senior title by taking the Glasgow Futures event. He also reached the semi-finals of the Edinburgh Futures event. For the first six months of 2004, Murray had a knee injury and couldn't play. In July 2004, Murray played a Challenger event in Nottingham, where he lost to future Grand Slam finalist Jo-Wilfried Tsonga in the second round. Murray then went on to win Futures events in Xàtiva and Rome. In September 2004, he won the Junior US Open and was selected for the Davis Cup World Group play-off match against Austria later that month; however, he was not selected to play. Later that year, he won BBC Young Sports Personality of the Year. As a junior, Murray reached as high as No. 6 in the world in 2003 (and No. 8 in doubles). In the 2004-instated combined rankings, he reached No. 2 in the world. Junior Slam results: Australian Open: - French Open: SF (2005) Wimbledon: 3R (2004) US Open: W (2004)  Murray began 2005 ranked No. 407, but when he was in South America in January, he hurt his back and had to take three months off. In March, he became the youngest Briton to play in the Davis Cup. Murray turned professional in April and was given a wild card entry to a clay-court tournament in Barcelona, the Open SEAT, where he lost in three sets to Jan Hernych. In April, Murray parted acrimoniously from his coach Pato Alvarez, complaining about his negative attitude. Murray then reached the semi-finals of the boys' French Open, where he lost in straight sets to Marin Čilić. Mark Petchey agreed to coach Murray for four weeks until the end of Wimbledon, but it metamorphosed into a full-time position. Given a wild card to Queen's, Murray progressed past Santiago Ventura in straight sets for his first ATP match win. Following a second-round win against Taylor Dent, he played former Australian Open champion Thomas Johansson in the third round, losing in three sets after cramping and twisting his ankle. Following his performance at Queen's, Murray received a wild card for Wimbledon. Ranked No. 312, Murray became the first Scot in the Open Era to reach the third round of the men's singles tournament at Wimbledon. In the third round, Murray lost to 2002 Wimbledon finalist David Nalbandian due to cramping and fatigue, having led two sets to love.