Roger Federer's 2011 tennis season brought no Major victories but was not entirely unsuccessful. This year, when he turned thirty, marked a decline in his standing in the sport. It was the first year since 2002 that he did not win a Grand Slam title, and, with the ascendance of Novak Djokovic to World No. 1, his ranking dropped from 2 to 3 behind Rafael Nadal. However, this season had some high points. In the French Open semifinals, Federer defeated Djokovic and ended his 43-match win streak. Also, he ended the year well by winning three straight titles, including a title at the Paris Masters, and successfully defended his title at the year-end ATP Championships.