Great article about a US former champion squash player, Victor Niederhoffer, that may have parallels with Murray. Niederhoffer looking back on his career he wished he risked more in his squash games and less in his investment choices (he went on to become a fund manager).
As a squash player, I was gifted. I had all the right things going for me. I practiced. I was very good with the racket, and I had tremendous anticipation. But I tended to play an errorless game by hitting a slice on my backhand, which took a lot of power off the ball. That wasn’t a disaster, but it was definitely a weakness in my game. My opponents always used to say that on a good day they could beat me, because they could hit more spectacular shots than me. But they never did. I went for about 10 years without losing a game, except to [the great Pakistani squash player] Sharif Kahn. He made about six, seven errors a game—but he also made eight or nine winners. I would make about zero errors per game but only one or two winners. He had the edge on me about 10-4, and I regret that I was never willing to accept the risky shots and confrontations, never willing to play a more error-full game.
Murray has grown up winning games by letting the other guy make the mistake – perhaps he needs to go for more winners. But perhaps he has already adapted given his perfomance so far in Wimbledon.