Conor McGregor took on Chad Mendes on short notice at UFC 189 and claimed the featherweight interim title. After that he knocked out Jose Aldo in 13 seconds to become the UFC Featherweight Champion. Now as the undisputed 145-pound champ, McGregor will challenge Rafael dos Anjos for the lightweight belt at UFC 196 on Mar. 5 live on Pay-Per-View.