 As a member of one of the NFL’s defensive lines termed as the Fearsome Foursome, he teamed up with fellow end Sam Williams, and tackles Alex Karras and Roger Brown, forming one of the most dominant defensive lines of the early 1960s.The Foursome spearheaded a defense that holds two of the top four sack totals in Lions history, with 50 in 1964 and 49 in 1965.At the time of his retirement, his 168 games with the Lions was a franchise record.