2009
Won first Australian Open title, defeating Federer in a five-set final, after edging Fernando Verdasco in a five-set semifinal. His 31-match unbeaten run at the French Open ended with a fourth-round loss to Robin Soderling. Nadal was troubled by knee tendinitis and sat out Wimbledon. Dealing with an abdominal issue, reached the U.S. Open semifinals before losing to champion Juan Martin del Potro.
2010
Stopped during Australian Open quarterfinal because of an injured right knee, but returned to top form at the French Open: He won his fifth title in Paris and didn't drop a set, beating Soderling in the final. Won Wimbledon for the second time, then completed career Grand Slam by beating Novak Djokovic in the U.S. Open final. Finished the year ranked No. 1.
2011
Hurt left leg muscle at the Australian Open, but was fine by the French Open and tied Borg's career mark for men with a sixth championship, beating Federer in the final. Nadal lost seven of 10 finals that season, with six of those setbacks against Djokovic, including at Wimbledon and the U.S. Open.
2012
Beat Djokovic for seventh French Open title. At Wimbledon, lost to Lukas Rosol in the second round while hampered by a left knee problem that kept him out for the rest of the season.
2013
After seven months off the tour because of his left knee and a stomach virus, put together a 10-title season that put him back at No. 1. Won eighth French Open and second U.S. Open (beating Djokovic in the final), raising Grand Slam total to 13, trailing only Pete Sampras (14) and Federer (17).
2014
Pulled even with Sampras by adding French Open title No. 9, beating Djokovic in the final. Lost to 144th-ranked Nick Kyrgios in the fourth round at Wimbledon, then missed three months with a bad right wrist. After returning, sat out two events because of an appendicitis.
2015
Lost to Djokovic in French Open quarterfinals; bowed out at that stage or earlier at other three majors, ending 10-year run with at least one Grand Slam trophy.