Irina Shayk Teeny Bikini Goes Missing ... Bradley Cooper Misses Out

7/29/2016 11:02 AM PDT

Irina Shayk's Teeny Bikini Goes Missing, Bradley Cooper Misses Out

We're not really sure why Irina Shayk even bothered with this bikini.

The supermodel was on vacay with Bradley Cooper -- they moved on to the Italian isle of Sardinia.

Looks like Irina was solo on the beach as her butt was devouring a micro bikini. Bradley? For some reason he was playing tennis.

Julia Roberts said it best ... big mistake, Bradley. Huge.