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CLOSE SportsPulse: USA TODAY Sports' NFL experts tell you who's going to win the biggest matchups of Week 16.  USA TODAY Sports
Pittsburgh Steelers outside linebacker James Harrison (92)  takes the field against the New York Giants at Heinz Field. (Photo: Charles LeClaire  USA TODAY Sports)
 The Pittsburgh Steelers  have parted ways with one of  their  all-time greats.
 Linebacker James Harrison  the franchise's career sack leader   was released by  the team  on Saturday.
In a corresponding move   the Steelers  activated offensive starting Marcus Gilbert  who missed the previous four games while serving a suspension for violating the league's policy on performance enhancing substances.
More: Your complete fantasy football guide to  Week 16
Harrison  has 80 1/2 sacks in 15 years  14 of which have been spent in Pittsburgh.  He  has played in just five games and logged three tackles this season  however  as rookie T.J. Watt took over a starting role.
A five-time Pro Bowl selection and the 2008 defensive player of the year   Harrison  began with  the Steelers  as an undrafted free agent out of Kent State in 2002.  He  did not become a full-time starter until  he  was 29  but  he  recorded 54 sacks in  his  first five seasons in the role.
 Harrison 's 100-yard return of a Kurt Warner interception in Super Bowl XLII was one of the defining moments of Pittsburgh's win over the Arizona Cardinals and remains one of the most iconic moments in the game's history.
 Harrison  briefly retired after spending the 2013 season with the rival Cincinnati Bengals but returned to  the Steelers  in September 2014.

James Harrison released by Steelers