Ortiz, the 42-year-old Cuba native, is a former interim WBA heavyweight champion and challenged twice for the WBC. He won a silver medal in the 2005 World Cup representing Cuba.
Martin, 35, is a former IBF heavyweight champion but has the record for the second-shortest stint as heavyweight champion. He held the title for 85 days between January and April 2016. A win over Ortiz would definitely boost his standing in some of the other rankings.