Yeah, half of VS gurus were saying that THE CLUB was looking for a consensual resolution of his contract and he rejected. Maybe he wanted to be sacked to take the whole salary home?
EDIT:
I think it's worth mentioning that VS has a guru who is apparently Allegri's personal friend, so while his news is never that exciting, he hardly gets things wrong. What matters here is that he for months has been mentioning that Max is/was tired which matches with Della Valle's news. Then, he's a stubborn guy who doesn't want to leave as a loser...