CHESTER-LE-STREET, ENGLAND - APRIL 24: Middlesex batsman Adam Voges hits out as Michael Richardson looks on during day one of the Specsavers County Championship Division One match between Durham and Middlesex at Emirates Durham ICG on April 24, 2016 in Chester-le-Street, England. (Photo by Stu Forster/Getty Images)

Video has emerged of the moment Australian batsman Adam Voges was struck in the back of the head by a cricket ball while fielding for Middlesex in the County Championship on the weekend.

Voges was fielding at slip when an errant throw from substitute fieldsman Ollie Rayner flew past wicketkeeper John Simpson and hit Voges in the back of the head.

The 36-year-old fell to the ground, but was conscious when the team physio arrived to treat him, before he was taken to hospital as a precaution.

He has since been discharged from hospital.