Hoping to snap their current losing streak the Cardinals flew to Hubert H. Humphrey Metrodome for an NFC duel with the Vikings. In the second quarter the Cardinals trailed early as QB Brett Favre got a 12-yard TD pass to RB Adrian Peterson. They immediately replied with a 96-yard kickoff return for a touchdown by RB LaRod Stephens-Howling. The Vikings responded with kicker Ryan Longwell nailing a 21-yard field goal. The Cardinals replied a took the lead with QB Derek Anderson completing a 30-yard TD pass to WR Andre Roberts. This was followed by DB Michael Adams returning a fumble 30 yards for a touchdown, and with kicker Jay Feely making a 22-yard field goal. The lead was closed down by Peterson as he got a 4-yard TD run, and by QB Brett Favre's 25-yard TD pass to TE Visanthe Shiancoe. After overtime the decision was made when Longwell successfully made a 35-yard field goal to give the Cardinals a loss, bringing their record down to 3-5.
Question: How many yards was the shortest touchdown run?
Answer: 4