It is very difficult to choose between the two, as they are going through a good phase in the ongoing US Open, as they have been demolishing their opponents with ease. Roger Federer has not dropped a single set in the tournament, which could give him the much-needed confidence in the business end of the competition. Murray has also been equally impressive losing only a single set in the championship to F. Lopez in the third round. So, if these players clash, the fans would be treated to a quality match, which could go either way.

Murray has not won a single Grand Slam till date. If he is to win the US Open, Federer could be his toughest obstacle and a possible final clash with Djokovic. It is rest assured that Federer would go all out to win this match, as it would act as a revenge on his Olympic medal loss. Federer has made winning Grand Slams his habit. He is a different player while playing in Grand Slams, which he has won 17 in total. How eager must the player be to clinch his 18th title in the Flushing Meadows! Federer enjoys a great record against the Brit, who has never defeated Federer in a Grand Slam match.

But Murray has been one of the most improved players in the ATP circuit especially this year, where he has defeated the best of the best on the circuit including Federer and Djokovic. So, the player is not going to be short of confidence whatsoever. He holds a great record against Federer in various other ATP competition, excluding Grand Slams. This time around, he needs to come up with such ATP competition performances as that of the ATP world Tour finals in 2008, 2009 and 2010, where Murray turned victorious on all counts.

Out of these two players only one would be able to reach the finals of the competition. It is either going to be Murray or Federer. A victory here for either would give them a cutting edge over their rivals in the finals of the 2012 US Open.