In week 7, the Lions traveled to Chicago to take on their NFC North Division arch-rivals the Chicago Bears on Monday Night Football. The Bears struck first when Brandon Marshall caught a 7-yard touchdown pass from Jay Cutler, and added more points when Robbie Gould kicked a 39-yard field goal. After a scoreless second quarter, the Bears' Robbie Gould scored the only points of the third quarter with a 21-yard field goal. The Lions scored their only points of the game in the fourth quarter when Ryan Broyles caught a 12-yard touchdown pass from Matthew Stafford. It was their fifth straight loss at Chicago as they dropped to 2-4 on the season.

Based on the above article, answer a question. What was the shortest touchdown?
7-yard