"I've accomplished everything I could possibly dream of as a football player," Diehl said in a statement. "If in 2003, anyone would have said that Dave Diehl, a fifth-round draft pick out of Illinois, would win two Super Bowls, play in the Pro Bowl and win every single Giant award possible, people would have said you're crazy. I have a lot to be proud of."
Diehl was known for his toughness and flexibility. He played practically every position on the line throughout his career.