Coming off their home win over the Bills, the Packers traveled to Soldier Field for a Week 3 Monday night duel with their hated divisional rival, the Chicago Bears.  Green Bay would deliver the opening strike in the first quarter as quarterback Aaron Rodgers completed a 7-yard touchdown pass to wide receiver Greg Jennings.  The Packers would add onto their lead in the second quarter as kicker Mason Crosby got a 38-yard field goal.  Afterwards, the Bears would close out the half as quarterback Jay Cutler found tight end Greg Olsen on a 9-yard touchdown run.  After a scoreless third quarter, Chicago took the lead in the fourth quarter as wide receiver Devin Hester returned a punt 62 yards for a touchdown.  Fortunately, Green Bay came right back with a 9-yard touchdown run from Rodgers.  However, the Bears' Robbie Gould scored two field goals, from 25 and 19 yards, the final points being set up by a James Jones fumble, to win the game for Chicago. The Packers committed a franchise record 18 penalties in the game.
Question: How many yards was the longest touchdown run?
Answer: 9