Roger, over and out?

As fans lay transfixed watching the battle for the US Open, it became apparent that there is also a changing of the guards in the tennis world. The champs are getting younger and younger. I am not completely writing Roger Federer off, but since last year, I felt that Roger's chances for a Slam win is higher if Rafael Nadal gets waylaid early. This happened in the French Open and also now in US Open when Juan del Potro gave Rafa no chance after his match with Gonzales.

But del Potro did not stop there. He went on to win it all. He is just 20 years old. Roger is just 27, still years before one's prime in other sports. They get younger all the time. Which makes me feel still older and older.

In the distaff side, 17 year old Melanie Oudin made a very good run for the crown, scoring upsets over people still under 25, before being stopped by Caroline Wozniacki, herself a teenager.

After an astounding streak of 22 consecutive Grand Slam semi-finals, is it now Roger, over and out?