Hristo Stoichkov has resigned as coach of CSKA Sofia after only a month in charge of the troubled Bulgarian club.
The former European Footballer of the Year said he had lost faith in the owners and their "endless lies".
"I'm fed up, I'm leaving," the former Barcelona striker said in a letter addressed to local media.
"I agreed to start coaching without a contract and I had a great desire to help.
"I had the support of the players and my staff. We endured until it became clear there's no chance of promises being fulfilled," added Stoichkov, who didn't attend CSKA's training sessions in the last 10 days.
CSKA, the most successful Bulgarian club with 31 league titles, turned to crowd favourite Stoichkov last month for their fourth coach of the year.
Stoichkov, who won three league titles and four national cups as a CSKA player in the 1980s, received a rapturous welcome as thousands of fans cheered him and let off flares during the club's first pre-season training session.