10 things that happened since the last time Roger Federer and Rafael Nadal were not in the top 4

#8 Tiger Woods lost his No.1 ranking, regained it and lost it again

Woods became No.1 again in 2013 and held the spot till 2014 before struggling yet again

Tiger Woods was a dominant force in golf in the 2000s but even the celebrated golfer could not stretch his dominance as long as Federer and Nadal did. Woods spent 264 weeks from August 1999 to September 2004 and 281 weeks from June 2005 to October 2010 as World Number One in golf.

He was also the highest paid athlete in the world for several years running. He had temporarily retired in 2009 after personal problems which also included a high-profile divorce from his wife Elin Nordegren. This was followed by a loss of golf form, and his ranking gradually fell to a low of No. 58 before he stormed back.

He became No.1 again in 2013 and held the spot till 2014 before struggling yet again. In May 2016, he even dropped out of the top-500 golfers in the world. Well, Federer and Nadal have only still dropped out of the top-4.