Unfortunately, I don't know how much credibility I have because of what happened at Watford and I suspect that my next job will probably be in Italy.'
Vialli was sacked by Watford one year into a lucrative three-year contract. They had finished 14th in Division One and, with running costs rocketing under the Italian, they narrowly avoided administration last year.
The dispute between club and coach was settled only last summer when Watford paid Vialli around £1.5million in compensation for the two remaining years of his deal.
But Vialli, who won four trophies during his time in charge at Chelsea, is determined he will not make the mistake of taking on any job just to get back in the game. 'It will have to be the right one,' he said.