Andy Murray's Rogers Cup final win over Novak Djokovic is a "huge psychological boost" for the US Open, says former British number two Jamie Baker.
The Scot, 28, ended an eight-match losing run against the world number one to prevail 6-4 4-6 6-3 in Montreal.
"For Andy, it's all about adding to the two Grand Slams he already has," said Baker, a former Davis Cup player.
"Everyone involved in the game assumes that to win more he's going to have to get past Novak Djokovic."
Murray beat Djokovic to win the US Open in 2012 and did so again to triumph at Wimbledon in 2013.