According to the official Twitter page of the tournament, the fight will take place on January 23 as part of the UFC 257 tournament.
Although the venue of the match has not been announced, it is expected to be held in Abu Dhabi, the capital of the United Arab Emirates.
Mokgregor announced his retirement in July this year. The Irish athlete faced Porie in 2014, in which he defeated his opponent from the United States by technical knockout in the second minute of the first round.
