What on earth are you talking about? Are you trolling or something? How exactly does ANYBODY win a match against an opponent who is playing BETTER??
The reason someone wins a match is generally because they are playing BETTER than their opponent (unless the opponent pulls out of the match because of injury). It doesn't matter what the reasons may be why an opponent plays worse, if he plays worse, he loses the match. The better player in the match ALWAYS wins! It's that simple!
In that case, there must be asterisks against ALL the wins of Djokovic, Federer and Nadal etc. because each time they won a match it was because they were the better player! None of them ever won a match against an opponent who played better than they did!
Lol man, you really crack me up with your sincerity! You really need to update your sarcasm meter. I was trolling of course , do I seem like a Murray hater to you?