Context: Coming off their bye week the Titans flew to Sun Life Stadium for an AFC duel with the Dolphins. In the first quarter the Titans trailed early as RB Ronnie Brown got a 2-yard TD run. They replied with RB Chris Johnson getting a 17-yard TD run. They took the lead after kicker Rob Bironas nailed a 40-yard field goal. They fell behind after kicker Dan Carpenter made a 23 and a 26-yard field goal, which was soon followed by QB Chad Henne completing a 13-yard TD pass to RB Patrick Cobbs. The Titans replied with QB Vince Young completing a 14-yard TD pass to WR Nate Washington, but fell further behind after Carpenter got a 42-yard field goal, followed by QB Tyler Thigpen making a 9-yard TD pass to TE Anthony Fasano (With a failed 2-point conversion). Then DB Reshad Jones tackled in the end zone for a Dolphins safety.

Question: How many yards was the shortest touchdown run?

Answer:
2