Conor McGregor Super Hyped In UFC Pre-Fight Workout, 'I F**kin' Love It'

T-minus 8 days until the return of Conor McGregor ... and no one seems more excited than Conor himself!

Check out the Irish superstar in a pre-fight workout at the UFC Performance Institute in Las Vegas earlier this week -- his energy is through the roof.

As we previously reported, Conor returned to America a few weeks before the January 18 bout with Donald "Cowboy" Cerrone ... and he's been training like crazy.

During this week's workout session, Conor was bouncing around the gym while Notorious B.I.G. played in the background. At one point you can hear McGregor say, "I f**king love it!"

McGregor hasn't fought in the Octagon since his UFC 229 loss against Khabib Nurmagomedov in Oct. 2018.

Conor has said his main goal is to run it back with Khabib -- but Dana White wants him to EARN his rematch by getting through Cowboy first at UFC 246, only available on ESPN+.