Collazo, the former world welterweight titleholder, faces fringe contender Angel Ruiz at the Whitesands (also known as the ProBox TV) Events Center in Plant City, Florida.
WBC heavyweight champion Tyson Fury faces the WBA, WBO, IBF and The Ring heavyweight champion Oleksandr Usyk to become the first undisputed heavyweight champion since Lennox Lewis over two decades ago.
