Conor McGregor sure appears ready for a fight later this summer ... he just posted a shirtless selfie showing off his bod -- and he looks GOOOOOOD!!!!
The UFC superstar shared the pic from his bathroom on his social media page late Tuesday night -- wearing nothing but a towel.
In the snap, which seemed to be taken just after he had gotten out of the shower, McGregor showed off some massive biceps, huge traps, and chiseled pecs.
The 34-year-old knew he looked good too .