SuperHead
Rookie
If Djokovic loses to Murray in the Qf Federer will have a better chance to win the US Open:
This year Federer has dominated against Murray (Federer 2-0 against Murray in 2014) so should he play him in the final he will be easier to beat than Djokovic.
If Federer wins the US Open he will go ahead of Nadal and his ranking will rise to No.2 in the world from No.3. however he will still be behind Djokovic. If Djokovic reaches the final (and loses to Federer) then there will be a huge 3 or 4 thousand point difference from himself and Federer.
On the other hand, if Djokovic loses to Murray in the Qf and Federer wins the US Open then there will be a smaller gap between Djokovic and Federer and it will be possible for Federer to become No.1 before the end of the season.
Furthermore, if Murray beats Djokovic and reaches the final then his ranking will increase but this won't affect Federer's ranking and him becoming No.1, whilst if Djokovic reaches the final this would diminish Federer's chances of becoming No.1 and will increase the gap there would be between Djokovic and Federer.
This year Federer has dominated against Murray (Federer 2-0 against Murray in 2014) so should he play him in the final he will be easier to beat than Djokovic.
If Federer wins the US Open he will go ahead of Nadal and his ranking will rise to No.2 in the world from No.3. however he will still be behind Djokovic. If Djokovic reaches the final (and loses to Federer) then there will be a huge 3 or 4 thousand point difference from himself and Federer.
On the other hand, if Djokovic loses to Murray in the Qf and Federer wins the US Open then there will be a smaller gap between Djokovic and Federer and it will be possible for Federer to become No.1 before the end of the season.
Furthermore, if Murray beats Djokovic and reaches the final then his ranking will increase but this won't affect Federer's ranking and him becoming No.1, whilst if Djokovic reaches the final this would diminish Federer's chances of becoming No.1 and will increase the gap there would be between Djokovic and Federer.