Conor McGregor has marked his return to mixed martial arts with a definitive UFC victory, beating Donald Cerrone in just 40 seconds.

The 31-year-old Irishman stopped his American opponent with a punch to the nose swiftly followed by left kick to the head.

Conor McGregor beats Donald Cerrone in just 40 seconds
Image:He knocked out Cerrone with a swift kick to the head

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100 injured in clashes between protesters, riot police in Lebanon

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Wildfires may permanently alter Australian landscape, scientists warn
Scientists say the Australian landscape is being permanently altered by the nationwildfire crisis as a warming climate brings profound changes to the island continent.

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