Conor McGregor says he's closing in on a deal with UFC to take on Khabib Nurmagomedov in his first fight since boxing Floyd Mayweather and getting busted in NYC ... but the details are still fuzzy.br br SUBSCRIBE -- br br About TMZ Sports:br Some of the best stories in sports have been off the field and we’re reporting on athletes from NFL, NBA, UFC, WWE, MLB and more! br br Subscribe to TMZ Sports on YouTube for the latest news, exclusive interviews, clips from TMZ Sports on FS1 and videos of your favorite athletes and celebs.