Floyd, an unarmed black man, died after a white police officer knelt on his neck for several minutes despite him pleading that he could not breathe.
Minneapolis police officer Derek Chauvin was charged on Friday with the murder of Mr Floyd, who was 46.
And as widespread protests against police brutality take place in America and beyond, UFC star McGregor said: “There is no place for injustice, racism and intolerance in this world! We must really listen and learn from those in pain.
“Be the example of the change you want to see!!
“Praying, hoping, and believing everyday that this is all a part of the lords plan to lead us to a better and brighter future ahead.
He got a quick response from Instagram Model Janine Almario (Check out her pics above).
And boy did other commenters enjoy it.
Flip the page to see her response: