The retired Bulgarian striker is heartbroken to see the highly-rated coach depart Camp Nou, but notes that he expects the Blaugrana to remain at the top
The 41-year-old trainer revealed earlier on Friday at a press conference that he will leave Camp Nou at the end of the current campaign, with assistant coach Tito Vilanova due to take the reins of the team thereafter.
"I am sad, today is a sad day," Stoichkov told COM Radio. "A Barca myth is gone, the last of the Mohicans of the Johan Cruyff era.
"Barca will never have a coach who can win six titles in a single year. Perhaps he did not have the necessary support at the club anymore."
However, the Bulgaria legend, who played at Barca between 1990 and 1995 and then between 1996 and 1998, insisted that the club will not fall apart because of Guardiola's departure.
"Barca are the best club in the world by a big margin," the 46-year-old said.
Since taking charge of Barca in 2008, Guardiola has led the club to 13 titles, including two Champions League crowns.