http://mmajunkie.com/2015/03/ufc-18...-anjos-becomes-champ-in-record-18th-ufc-fight Nelson has absorbed 617 significant strikes throughout his UFC career, the most of any heavyweight in company history. Of those 617 strikes, 413 were landed to the head. Nelson, 38, has lost four-of-five. Obviously somebody had to be the leader in this category but it is impossible not to be concerned for his long term brain health reading a statistic like that.