FILE - Minnesota Vikings offensive tackle Korey Stringer (77) looks at the clock during the closing moments of a Vikings playoff victory over the Dallas Cowboys, in this Jan. 9, 2000 file photo, in Minneapolis. Stringer, 27, died early Wednesday, Aug. 1, 2001, from complication of heat stroke after collapsing at Minnesota Vikings' training camp in Mankato, Minn. Health officials warn about the importance of drinking fluids and staying cool in hot weather. (CP PHOTO ARCHIVES/ AP/ Tom Olmscheid)