"There are rules at Juventus, Ranieri did well to remind everybody of them," said Blanc.
It remains to be seen whether Trezeguet will remain in Turin next season after this outburst.
"We are rebuilding Juventus and it is still an on-going process," explained Ranieri. "Now we need to understand who wants to take on this responsibility, as the Coach and club cannot do it on their own.
"This is the same speech I gave the squad at the start of the season and the situation hasn't changed. We need those players who feel they are a part of this club and the plans for the future."