The Patriots have a chance to add an enforcer for the playoffs. Former Steelers linebacker James Harrison is visiting Gillette Stadium today, according to a source. If the Patriots choose to sign him, Harrison would fit on their defensive edge. Harrison, 39, only had one sack in five games this season with the Steelers, as his role was significantly reduced. They released him last week, and he is currently a free agent. Harrison has 82.5 career sacks, including three against the Patriots, and all but two have come in his 14 seasons with the Steelers. He also spent the 2013 season with the Bengals. Harrison has 11 sacks in 18 playoff games, and he could have been the Super Bowl XLIII MVP when the Steelers beat the Cardinals.