What is happpening to Federer these days? Ever since he lost to Nadal in Wimbledon final he is looking very vulnerable these days. Lost in first round in Toronto and lost in Cincinnati in 4th round. On the other hand Nadal is becoming stronger by each passing day. Is it the end of Federer era?

If Nadal wins this tournament he will be No.1 after staying No.2 since June 2005.