The Frenchman, 82nd player in the world, will face for a place in the final the winner of the match scheduled for the evening between the Canadian Félix Auger-Aliassime (10th) and the Briton Daniel Evans (26th).
This is the first time that Gasquet has reached the last four of a tournament on the main circuit since the Geneva tournament last May.
He had been sharply beaten by the Portuguese Joao Sousa in straight sets 6-2 6-2.
Friday, facing an opponent he had beaten only once in their four previous confrontations, Gasquet took control by seizing the service of the former world No.7, today ranked 58th, in the 4th game of the first set and on his fourth break point.
The French veteran, who had dismissed three match points when he entered the tournament against Swiss Stanislas Wawrinka, broke his opponent a second time at 5-2 and took the lead after 36 minutes of play.
The second set was more contested.
Goffin got a total of six break points and a set point in the tiebreak, but couldn't convert them.
Gasquet took advantage of his first match point to clear the obstacle in one hour and 53 minutes of play.
David Goffin during his quarter-final in Antwerp against Richard Gasquet on October 21, 2022. The Belgian got an equalizing ball at one set everywhere in the decisive game but was unable to convert it DAVID PINTENS BELGA / AFP /Archives
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