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Los Blancos dropped points for the eighth time this campaign when they drew 2-2 with Celta Vigo on Sunday.
With the Galacticos now 16 points off La Liga leaders Barcelona, Zidane is just 5/4 to be sacked this season after a dreadful first half of their campaign.
The former France international won the Champions League with Los Blancos during a stellar five years at the Bernabeu.
But he's under no illusions that what he achieved at Real as a player counts for little as their manager.
"Zinedine Zidane isn't a player at Real Madrid anymore. That Zidane no longer exists," he told France Football.
"Now it's down to Zinedine Zidane the coach to carve out a career.
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“I know I won't stay [in the job] for 10 years”
Zinedine Zidane
"I'm not protected by what I've done as a player at this club.
"I know that one day it [the coach's job] will come to an end at Real Madrid.
"So I make the most of it and I do everything I can to be successful.
"I say to myself, 'if I've got 10 days left here, then I'm going to live those 10 days to the max; if it's six months, I'll live those six months to the max'.
Philippe Coutinho and 35 others to leave the Premier League for Barcelona or Real Madrid
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"I don't think beyond that. I know I won't stay [in the job] for 10 years."
Real face Numancia in the second leg of their Copa del Rey clash tomorrow
Zidane's side can take the game relatively easy as they're 3-0 up from the first encounter.