Don't start mentioning about choke. If we are to go that way, then Federer lost many matches due to that. In Rafa's biography, he himself said that Roger played well in 2006 or 2007 FO final but the pressure of winning all four majors got to him and he lost. NOTE : I was just quoting Rafa and I don't subscribe to that opinion. Djokovic and Nadal benefitted a lot from the slowing down of surfaces and it hurt Roger the most. In Pete - Agassi rivalry Pete had the benefit of fast courts while Roger didn't have that. US Open and Wimbledon were slowed down. You saw what happened this year in Cincinnati when he bagelled the hard court king.. The thing is Roger lost two hard court matches each at Miami and AO, the slowest hard courts. Martina even said the AO is slower than clay courts. ATP is slowing down all surfaces, these homogenization helps Rafa and Djokovic a lot while playing Roger. So Mr. Natural born Roger Federer hater, be objective for a change. I know its tough for you to do that. Just try !