AVB insists the £80million-rated winger will be training again after Tottenham have returned to England.
"He is going to be fit to join the team for training on Wednesday," he said. "There is a big possibility he could be fit for Monaco.
"He hasn't done any training with the team yet but in all of the pre-season friendlies we had before he was involved. We are confident he will be able to join us."
But, quizzed repeatedly about Bale's future, Villas-Boas fell back on the same phrase.
"I won't comment on anything. I am so sorry," he said. "I can't speak about speculation."