The Irishman has become the first simultaneous two-division champion in UFC history.
McGregor (21-3 MMA, 9-1 UFC) is now owner of both the UFC Lightweight and Featherweight championships after beating Eddie Alvarez (28-5, 3-2 UFC) on Saturday at UFC 205.
Conor McGregor followed B.J. Penn and Randy Couture as the only fighters in UFC history to win belts in two divisions.
However, but he made history by being the first to hold two belts at once.
In an interview to Rolling Stone, McGregor said: "I saw this so clearly – I swear to God – I saw this so clearly."
"I followed it until it was reality. I'm very confident in my abilities. I back it up with work ethic, I back it with hours and hours of time and dedication. I never take an hour off this game. I'm very satisfied, very grateful, very happy. But not surprised. I knew it was going to happen to me," he added.