THANKS ROGER FOR KEEPING US ENTERTAINED: When a glittering career as big as Roger Federer ends, it leaves a huge vacuum in sport, especially tennis. Federer has been a class apart. He had such mesmerising effect on his rivals that for long they never believed he could be defeated. At 41, Federer’s days on tennis courts were numbered but just the way he wanted one final fling with Wimbledon, even the fans would have liked to see him win another crown on the hallowed grass courts of the all England clubs. It is time to say a big thank you to the magician with a racquet. (By A.K.S. SATISH, Sports Editor)