Complex sentence: In December 2016, David Haye was made mandatory challenger for Parker's world title, however he chose to fight cruiserweight Tony Bellew in a heavyweight grudge match on pay-per-view.
Split into simpler sentences: In December 2016, David Haye was made mandatory challenger for Parker's world title. However, he chose to fight cruiserweight Tony Bellew in a heavyweight grudge match on pay-per-view.