"TUF: Smashes" coaches meet in Dec.
The two will meet at "UFC on FX 6" on December 15.
MMAjunkie.com reported the news.
The event will take place in Australia, though a city and venue have yet to be named.
But before the two 155 lb. fighters meet in the Octagon, they meet on the upcoming "Ultimate Fighter" season, which debuts on FX on September 19 in Australia.
Sotiropoulos burst onto the lightweight scene with seven straight wins to begin his UFC career. Since then, however, he has lost two straight, including a knockout loss to Rafael dos Anjos.
Meanwhile, Pearson is coming off a loss to Cub Swanson, which was his second fight at the featherweight mark. He is returning to lightweight to face Sotiropoulos this winter.