Oakland Raiders offensive tackle Art Shell (78), member of the Pro Football Hall of Fame Class of 1989, in a publicity photo from 1977. (Photo by NFL Photos)

Pro Football Hall of Fame offensive tackle, Art Shell (78) and center Jim Otto of the Oakland Raiders. (Photo by NFL Photos)

Oakland Raiders Hall of Fame tackle Art Shell blocks in the Raiders 31-28 win over the Cincinnati Bengals in the 1975 AFC Divisional Playoff Game in Oakland. (Photo by Arthur Anderson/NFL Photos)

BALTIMORE, MD - SEPTEMBER 28: Head coach John Madden of the Oakland Raiders watches from the sideline with tackle Art Shell #78 and tackle John Vella #75 against the Baltimore Colts at Baltimore Memorial Stadium on September 28, 1975 in Baltimore, Maryland. The Raiders defeated the Colts 31-20. (Photo by Clifton Boutelle/NFL Photos)

BALTIMORE, MD - SEPTEMBER 28: Tackle Art Shell #78 of the Oakland Raiders waches from the sideline against the Baltimore Colts at Baltimore Memorial Stadium on September 28, 1975 in Baltimore, Maryland. The Raiders defeated the Colts 31-20. (Photo by Clifton Boutelle/NFL Photos)

Cincinnati, OH - DECEMBER 10: Oakland Raiders head coach Art Shell (C) watches from the sideline during the first half against the Cincinnati Bengals on December 10, 2006 at Paul Brown Stadium in Cincinnati, Ohio. The Bengals defeated the Raiders 27-10. (Photo by David Maxwell/Getty Images)

LOS ANGELES - JANUARY 9: Head coach Art Shell of the Los Angeles Raiders tosses the football on the field prior to playing against the Denver Broncos in the 1993 AFC Wild Card Game at the Los Angeles Memorial Coliseum on January 9, 1994 in Los Angeles, California. The Raiders defeated the Broncos 42-24. (Photo by NFL Photos)

Los Angeles Raiders offensive tackle Art Shell (78), a member of the Pro Football Hall of Fame Class of 1989, watches as tight end Todd Christensen (46) is tackled by Seattle Seahawks defensive end Jacob Green (79) during a 28-23 Raiders victory on December 5, 1982, at the Los Angeles Memorial Coliseum in Los Angeles, California. (Photo by NFL)

17 Sep 1995: Coach Art Shell of the Kansas City Chiefs looks on from the sideline as he watches the Chiefs 23-17 victory over the Raiders at Arrowhead Stadium in Kansas City, Missouri. (Photo by Stephen Dunn/Allsport)

Former Oakland Raiders great Art Shell poses with his bust after being inducted into the Football Hall of Fame on August 5, 1989 in Canton, Ohio. (AP Photo/Bruce Zake)