His sister , Priscila , disappeared in downtown Rio de Janeiro .
However , on Jan. 9 , three weeks before the most significant fight of his life , Belfort was forced to deal with the unthinkable .
Belfort 's sister , Priscila , disappeared in downtown Rio de Janeiro .
However , on Jan. 9 , three weeks before the most significant fight of his life , Belfort was forced to deal with the unthinkable .