Former UFC lightweight champion Pettis: Conor McGregor the 'true' champion of the division

Former UFC lightweight champion Anthony Pettis believes Conor McGregor is the rightful ruler of the 155lb division ahead of the Irishman's showdown with Khabib Nurmagomedov this weekend.

McGregor did not defend the lightweight title he won in November 2016 by beating Eddie Alvarez and was stripped of the honour earlier this year because of his inactivity.