Conor McGregor on Twitter announced a charity fight with Dustin Poirier. Bookmakers have already identified a favorite:

(1.4) McGregor – Poirier (2.75)

Thus, the probability of McGregor winning is 71.4%. Porier’s victory was estimated at 36.4%.

As stated in Conor’s post, the fight will take place on December 12 in Dublin. However, there has been no official UFC statement yet, and the bookmakers admit that the fight may never take place.

Conor McGregor will fight in the UFC until December 31, 2020: Yes – 3.55, No – 1.25.
The last time Conor and Poirier fought in 2014 – then the Irishman won. During his professional career, McGregor had 26 fights (22 wins, 19 knockouts).