Real Madrid boss Mourinho is regarded by some as the finest coach in the game but he has lifted just one trophy since arriving at the Santiago Bernabeu in 2010, last season's Copa del Rey, although the club from the Spanish capital are currently six points clear at the top of La Liga.
Trezeguet, though, is in no doubt that the Portuguese would have added several more titles to his impressive CV were a certain diminutive Argentine forward not casting a very large shadow over the entire footballing world.
"If Messi was not at the club, Mourinho would have earned 10 times more trophies than he has won," the former France international exclaimed in an interview with Tyc Sports.
"He is the best in the world. He takes the ball and goes one on one with the keeper six or seven times per game - he is outstanding among ten other outstanding players.
"Barcelona are bright, while Madrid, one of the best teams in the world, still live in the dark."
Trezeguet added, though, that Mourinho's standing within the game has not been diminished by his relative lack of success with Madrid.
"Everyone has spoken well of him to me," the River Plate forward revealed. "The players of Porto, Chelsea, Real Madrid. He has a lot of dialogue with the players and is a great motivator."
After successive draws in La Liga, Los Blancos will be hoping to get back to winning ways when they tackle Real Sociedad at home on Saturday.
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