Task: Question Answering
Input (English): Passage: Coming off their win over the Falcons, the Cowboys stayed at home for a Week 8 duel with the Seattle Seahawks.  Dallas would trail early in the first quarter as Seahawks kicker Olindo Mare nailed a 43-yard field goal, yet the Cowboys answered with quarterback Tony Romo completing a 36-yard touchdown pass to wide receiver Sam Hurd.  In the second quarter, Dallas increased their lead as running back Marion Barber got a 2-yard touchdown run.  The Seahawks would reply with quarterback Matt Hasselbeck's 23-yard touchdown pass to wide receiver Deion Branch, yet the Cowboys came right back with Romo's 7-yard touchdown pass to wide receiver Roy Williams. Dallas would greatly increase their lead in the third quarter with Romo hooking up with wide receiver Miles Austin on a 3-yard touchdown pass, followed by wide receiver Patrick Crayton returning a punt 82 yards for a touchdown.  In the fourth quarter, the Cowboys solidified their win with kicker Nick Folk nailing a 40-yard field goal.  Seattle would close out the game's scoring with Hasselbeck's 4-yard touchdown pass to fullback Justin Griffith. Crayton would join "Bullet Bob" Hayes as the only Cowboys to have back-to-back games with a punt return for a touchdown. 
Question: How many players have had back to back games with a punt return for a touchdown as of this game? 
Answer type: Number 
Output (English): 2.