Rio Ferdinand asks Conor McGregor for a favour when he faces Fabricio Werdum

Could Rio enter the ring?

Not if the Notorious does his work for him.

Rio Ferdinand is not impressed by MMA heavyweight's Fabricio Werdum's latest Instagram post, in which he has mocked McGregor by using an old image of Ferdinand and Carlos Tevez in a Manchester derby.

Werdum superimposes his face on Tevez's, with McGregor's face appearing over Ferdinand's, lying prone on the ground.

Please Werdum :: Go slow :: easy you are a heavyweight !!! Wow !!! Now I love you more than #DanaWhite . now I know why #vaicavalo ????????

A photo posted by Fabricio Werdum (@werdum) on Feb 7, 2016 at 6:40pm PST

The Brazilian Werdum was responding to McGregor's claim that he would 'slay' and 'dethrone' the current UFC Heavyweight Champion.

Sort this fella out @TheNotoriousMMA otherwise guna have to enter the ring 👊🏽😂 https://t.co/jfxLvyM3l1

— Rio Ferdinand (@rioferdy5) February 8, 2016