By ESPNSTAR.com staff
Ferguson was in Murray's box cheering on his fellow Scot as the tennis ace overcame Novak Djokovic 7-6 (12/10) 7-5 2-6 3-6 6-2 in the US Open final.
The win was Murray's first Grand Slam title and came at the fifth time of asking following losing attempts in previous Grand Slam finals.
Murray, who is in London to compete at the ATP World Tour Finals, told the Daily Mirror that he'll never forget seeing Ferguson out of his seat gesturing to him and shouting encouragement.
"It was great having Sir Alex in the box," he said.
"It was fantastic to have him there supporting me.
"He is one of the most successful managers of all time.
"He is a legend, not just in his field, but in all sports. Him being in your box, that is always going to inspire you. I didn't get to see Sir Alex after the match, although I spoke with him after my semi-final win.
"All the other guys spoke to him and said he was really good fun and was very happy for me. They said he was very different to what they'd expected."
Murray's victory came 79 years to the day since Fred Perry won his first Grand Slam title at the US Open and ended Britain's 76-year wait for a men's singles Grand Slam champion.
He is considered one of the favourites to win the ATP World Tour Finals although he has been drawn in a tough group which includes Djokovic, Jo-Wilfried Tsonga and Tomas Berdych.