Is Roger Federer washed up?

Roger Federer, the world's #1 ranked Tennis player has won ONLY 2 titles this year.

After a Semi-Final loss to Novak Djokovic at the Australian Open, an embarassing loss to Rafael Nadal at the Roland Garros this year, a shattering upset by Nadal at Wimbledon, and just yesterday a shocking loss to Gilles Simon at Federer's opening match in the Roger's Cup, it is not surprising to wonder if this is serious or just a short slump.