Aleksey Krupnyakov (born May 28, 1978) is a male freestyle wrestler from Kyrgyzstan.

Krupnyakov originally won his 2nd bronze medal at the Wrestling World Championships in 2010, but was stripped after testing positive for steroids.

During his 2-year suspension he competed in MMA, compiling a record of 5-0, finishing all opponents in the 1st round.

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