The "Fed Express" is at the end of his tracks

For the past 8 years, we have watched, Roger Federer, arguably the greatest player of all time. He dominated the sport reaching a record number of semi finals in grand slams, something that will never be reached in my opinion. He has won 16 majors, been ranked number 1, won masters events and won with class... BUT, sadly, time and age is catching up to him. He is 30 yrs young very soon and in tennis years, at the twilight of his tennis game. His legs and speed and quickness is just not where it was 5 years ago... He is losing to players he would beat with his hands tied behind his back (all 'cept for the spaniard), and he just does not have the zip he once had on his shots. That BITE on his serve, the pin point piercing forehand are not what they used to be, but whats truly missing is the incredible "concentration" Roger possessed... I think Roger wants to win still as who does not, BUT i think the HUNGER in his stomach is just not what it was in his prime. Fed is still in great shape, works hard off the court and prepares as well as anyone, but whats missing is that "hungry blood tears and sweat filled" matches. He is missing points he never missed. . . The tracks had to run out sometime, but what a train its been.