Kei was unable to play the kind the tennis he had played in previous rounds and seemed a little overwhelmed by the occasion.
Marin was able to hold his nerve and win the key the points and match. This win will change Marin's life as he has always been a good player but did not have any trophies to show for it.
So I am sure he is hoping that now he has won his Grand Slam that he will be able to win more Grand Slams in 2015.