He is talking about it at JRE. He has some kind of brain disease (cavernoma) and doctors are not sure if its smart to continue fighting. They discovered it a month or so before the Mousasi fight. His whole camp got screwed up because of it. In the end he was cleared to fight Mousasi. In december 2019 they were planning for a fight with Mousasi for this month (januari 2020). The European mma commision allready had said he cant fight over there. In december the California commission said the same. The fight was off. Lovato will still be doing bjj-matches.