Lineker, Dern bouts among three added to UFC 224 card

The stacked UFC 224 card in Rio de Janeiro continues to add intriguing matchups, with three more bouts made official on Thursday.In the bantamweight division, No. 6-ranked contender John "Hands of Stone" Lineker gets a home game in Brazil as he takes on rising star Brian "Boom" Kelleher, who is coming off a February win over former world champion Renan Barao.After a big win in her UFC debut over Ashley Yoder on March 3, Mackenzie Dern will make a quick turnaround to fight in Rio against former U