Milestone keepsake in this game used football from the final career sack of long-time Pittsburgh Steelers linebacker James Harrison. To this day, Harrison's 80.5 sacks as a Steeler is still a team record and this is the ball from that record-breaking sack! Ball dates from the October 15, 2017, game against the Kansas City Chiefs, a 19-13 Pittsburgh win. This Official NFL The Duke (Goodell) ball is inflated, shows nice even use, has Harrison's number 92 written on the laces in black Sharpie, Chiefs' arrowhead logo is painted on a panel below which are the numbers "12" and what looks like "62" and "51" below in bold silver marker. The Hall of Fame candidate's final sack raised his career total to 84.5, all but four of which were recorded during his 14 seasons in the Steel City. Originates from the James Harrison Collection.