The Welshman was left on the bench as Real's disastrous 2018-19 campaign finished with a 2-0 home defeat to Real Betis on Sunday.
Zidane did not confirm afterwards that Bale will definitely leave. But he said that he had to do what was best for the team, no matter the qualities of an individual player, per Spanish football writer Dermot Corrigan:
Dermot Corrigan @dermotmcorrigan
Zidane on Bale again "I have to look at the day to day, and make decisions. And when there is something I do not like, or does not fit for me, I must do what I think best. It might be difficult for the player, who has won a lot here, but the day to day is the day to day."
Bale, 29, was not a consistent starter for Zidane toward the end of his first spell in charge.
At the end of last season, he did not start the UEFA Champions League final, but then came on to score a double and help Real beat Liverpool 3-1 to secure their third consecutive Champions League title.
When Zidane was reappointed as Real boss back in March, he initially started Bale in three of his first four games back at the club, but he did not play a minute in the last three games of the campaign.
It seems abundantly clear Zidane wants Bale shipped out this summer.
However, he has a contract at the club until 2022, and according to Spanish football pundit Guillem Balague, the former Tottenham Hotspur man does not want to leave:
Guillem Balague @GuillemBalague
Bale and Zidane are not talking to each other. You read and listen Spanish media and today was supposed to be his goodbye. Everybody want him out. But... He doesn't want to go. Not easy to sort out but I guess as a leader, Zidane should find ways to get to his pupil? https://t.co/79768NOpVv
Despite some poor performances in 2018-19, Bale has been remarkably successful at Real since moving to the Santiago Bernabeu in 2013:
He has never been a fan favourite, though, and he was long in the shadow of Cristiano Ronaldo.
Bale could still yet salvage a career that has stalled recently, but he will likely not do it in Madrid based on Zidane's latest comments.