Task: Question Answering
Input (English): Passage: Coming off their overtime win over the Bills, the Steelers flew to M&T Bank Stadium for a Week 13 AFC North rematch with the Baltimore Ravens on Sunday night.  Pittsburgh trailed in the first quarter as Ravens quarterback Joe Flacco completed a 14-yard touchdown pass to wide receiver Anquan Boldin.  After a scoreless second quarter, Pittsburgh answered in the third quarter with a 45-yard field goal from kicker Shaun Suisham.  Baltimore would respond with kicker Billy Cundiff getting a 24-yard field goal.  After adding a 19-yarder from Suisham, the Steelers defense would set up a 1st and Goal after safety Troy Polamalu stripped the ball from Ravens quarterback Joe Flacco with less than three and a half minutes to go, safety Troy Polamalu's sack on Flacco forced a fumble, allowing linebacker LaMarr Woodley to recover the ball and return it to the Baltimore 9, which was followed by quarterback Ben Roethlisberger finding running back Isaac Redman on a 9-yard touchdown pass on third down.  The Ravens tried to rally, but Pittsburgh's defense held on to prevail with the victory. With the win, not only did the Steelers improve to 9-3, but it also allowed them to take the AFC North division lead for the first time since week 4. 
Question: How many yards was the shortest touchdown pass? 
Answer type: Number 
Output (English): 9.