13 tries in the semifinals with a 6–2, 4–6, 7–5 win. With the win, Davydenko advanced to his second consecutive ATP World Tour Finals final. He won by defeating Juan Martín del Potro in the final, 6–3, 6–4. This victory meant that he became the first Russian to win the event. The straight-set victory also meant that the winner won the event in straight sets for the fourth year in a row. Davydenko finished the year ranked no. 6 in world and in the top 10 for the fifth consecutive year. 2010: Wrist injury Davydenko started the year at the exhibition event in Abu Dhabi, but was defeated in the first round by David Ferrer. A week later at the 2010 Qatar ExxonMobil Open, Davydenko defeated Roger Federer, 6–4, 6–4, in the semifinal and Rafael Nadal, 0–6, 7–6, 6–4, in the final to claim his twentieth ATP World Tour title. With this victory in 2010, Davydenko became the second player to beat both Roger Federer and Rafael Nadal in the same tournament (after Juan Martín del Potro at the 2009 US Open) on separate occasions. At the Australian Open, Davydenko won his first three rounds without dropping a set, before beating Spain's Fernando Verdasco in five sets. He eventually lost to Federer in the quarterfinal, 6–2, 3–6, 0–6, 5–7. Davydenko then went to Rotterdam to play in the ABN AMRO World Tennis Tournament. He was the second seed but, in the semifinal against Sweden's Robin Söderling Davydenko landed on his wrist, and injured it. He continued to play and lost to the eventual champion, 6–7, 4–6. Davydenko next appeared in the Dubai Tennis Championships. At the 2010 BNP Paribas Open at Indian Wells, Davydenko defeated Latvia's Ernests Gulbis. Before his third-round match with Viktor Troicki of Serbia, he withdrew due to a fractured wrist. According to Davydenko, his first MRI made in the Netherlands didn't allow to determine the fracture due to an inflammation, and thus it was diagnosed only in the US. Davydenko returned to the grass court in Halle, after missing the 2010 French Open. In his first match back, he beat local player Simon Greul, 7–6, 6–0. He played despite his doctor's advising him against playing the tournament. However, he lost in the next round to Benjamin Becker, 3–6, 4–6. He then fell in the second round of 2010 Wimbledon to Daniel Brands, 6–1, 6–7, 6–7, 1–6.