THIS is the horrific moment a thug knocks a woman out cold with a brutal elbow to the head — because she "invaded his personal space".

Chris Olcott struck out at Camile Chavez in a crowded bar called Mr Rick's in San Luis Obispo, California in May 2016.

3 This is the split-second before Olcott's elbow brutally connects with Chavez's face, knocking her unconscious

3 She was left with a concussion after the sickening attack - which started as pushing and shoving at the busy Mr Rick's bar in San Luis Obispo

He also repeatedly punched her friend, Isaac McCormack, in the back of the head in the sickening attack.

Olcott had already pushed Chavez twice because she was standing close to him at the bar.

He threw the dangerous elbow when she pushed him back the second time he shoved her.

Chavez was raced to a local hospital where she was treated for a concussion — McCormack was also diagnosed with a concussion.

Olcott had never met or spoken to the pair before he launched his assault.

McCormack told Coastal News: "After the bodyguards took him outside, [Olcott] said 'I don't care, I'll do it again'.

"I do not know what I did to deserve such a thing."

In January 2018, Olcott stood trial in a felony charge of battery with serious bodily injury along with a misdemeanour charge of battery.

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He later pleaded guilty to the misdemeanour charge in exchange for a dismissal of the felony offence.

San Luis Obispo County Superior Court Judge Jacquelyn Duffy sentenced Olcott to 60 days in jail with a three-year suspended sentence.

She also ordered him to take alcohol addiction classes.

3 Chris Olcott pleaded guilty to battery in connection with the incident in 2016

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