Nurmagomedov Slams McGregor

Conor McGregor is a "lowlife" according to his UFC rival Khabib Nurmagomedov.
Nurmagomedov is the UFC lightweight champion.
Nurmagomedov also called McGregor a coward.
The Russian wrestler humiliated McGregor in the fourth round of a wild UFC 229 fight last year.
But the win failed to settle a feud.
Their feud is getting uglier by the day.
Both fighters have engaged in a war of words on Twitter this week.
McGregor sunk to a new low, using racial and religious epithets against Nurmagomedov's wife.