He continued his solid form by reaching the semifinals of the Hamburg Masters and his first semifinal of a Grand Slam at the French Open. In the fourth round of the French Open, he upset one of the tournament favourites and the previous year's runner-up, Guillermo Coria, 2–6, 6–3, 7–6, 6–2. This win showed just how far Davydenko had come in the last year, as Coria had beaten Davydenko with the loss of just six games in the 2004 French Open first round. Davydenko lost in the semifinals of the 2005 French Open to Mariano Puerta in five close sets, 3–6, 7–5, 6–2, 4–6, 4–6. Davydenko reached the top 10 for the first time after the 2005 French Open. He closed out the year by reaching the quarterfinals at the Cincinnati Masters and the Paris Masters. After a great season, he qualified for the Tennis Masters Cup in Shanghai for the first time and reached the semifinals, losing to David Nalbandian. He finished the year as the no. 1 Russian and world no. 5. 2006 After his rapid rise into the top 5 in 2005, Davydenko continued to stay in the top 5 for 2006. He repeated his quarterfinal appearance at the Australian Open, losing to Roger Federer in four tight sets, 4–6, 6–3, 6–7, 6–7. He had another solid clay-court season, reaching the final in Estoril and the quarterfinal, at the Hamburg Masters. He defended his title in Pöertschach and reached the quarterfinal at the French Open for the second year. His form continued after an early loss at Wimbledon with wins in Sopot and his first American win in New Haven. He reached his second Grand Slam semifinal at the U.S. Open, losing to Roger Federer. He finished the season with a win in Moscow and his first career TMS title in Paris. After getting married, Davydenko helped Russia win the Davis Cup against Argentina. He reached a career-high ranking of no. 3, with which he finished the year. 2007 2007 started with another quarterfinal appearance at the Australian Open for the third consecutive year. He was slow to find his form in the clay court season, but finally did at the Rome Masters, losing in the semifinal to Rafael Nadal in an enthralling match, 6–7, 7–6, 4–6. His good form continued, and he reached the semifinals for the second time at the French Open, losing to Roger