Andy Murray's former coach Mark Petchey believes the Scot is edging closer to a first grand slam and would have already won had he played in another era.
The 25-year-old has twice reached the final of the Australian Open and finished runner-up in the 2008 US Open.
His latest quest for grand slam glory came to an end against David Ferrer on Wednesday, who won their French Open quarter-final 6-4 6-7 (3/7) 6-3 6-2.
It was Murray's earliest grand slam exit for almost two years but, despite that, his former coach Petchey believes he is edging closer to success.
"I don't think he needs to tweak a lot," he said.
"He has been pretty unlucky in terms of the era he is currently playing in with three guys that will not just get into the Hall of Fame but own it, probably.
"You can never choose your era and it is almost unprecedented what is going on.
"That is one of the toughest things and in his game he clearly works physically hard enough.
"The only thing, like everyone says, is consistently getting up the court a little bit with his forehand.
"He is so close to being able to pick one of these titles up and it may come in the next few."
Petchey, who forms part of ITV's French Open coverage, coached Murray up until the age of 18.
The Glaswegian became British number one and rose into the world top 50 under his tutorship and Petchey believes he should not be too disappointed with yesterday's exit in Paris.
"He had a tough draw, there is no question about it," he said.
"Richard Gasquet to play Ferrer to play Rafa Nadal to play Novak Djokovic or Roger Federer - it doesn't get any tougher than that.
"This is definitely the toughest of the slams for him to win because of the surface and how dominant Rafa has been on it, but he made a better fist of things than before."
Not only did Murray have to come through a tough draw, but he also had to contend with a back injury - one that almost ended his campaign against Jarkko Nieminen in the second round.
He needed three on-court massages to come through that match but Petchey is not overly concerned about the injury.
"I think it is par for the course. Everyone has their problems," he said.
"Rafa has had his problems, Novak has had his problems as it is a pretty brutal sport they are playing physically.
"Andy, to be fair, has only retired once in any match in his career so far since he made the tour.
"He hasn't had too many big problems and his back seems to have settled down over the course of the tournament so things are looking good."