There's good reason why Sports Illustrated model Samantha Hoopes has been hitting the juice bar with her tatas and booty on full display ... she's up for the biggest modeling job of her life.
Hoopes tells us she's up for the "Victoria's Secret Fashion Show" and she thinks juicing is the secret to being picked.
The S.I. model says she got the coveted call asking her to audition for the lingerie catwalk, a call only a couple hundred ladies get.
She's up against some tough competition -- Adriana, Alessandra and Behati to name a few -- but judging from her photos and recent juice bar runs ... Sam's got a fighting chance!
We are told she flew out for the casting in NYC on Friday ... no word if she's gotten the gig yet.
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