The Buccaneers began their 2007 campaign on the road against their fellow 1976 expansion mate, the Seattle Seahawks.  In the first quarter, kicker Matt Bryant provided two field goals for Tampa Bay (a 38-yarder and a 32-yarder) to begin the game.  In the second quarter, the Seahawks took the lead with kicker Josh Brown's 28-yard field goal, while RB Shaun Alexander got a 1-yard TD run. During a scoreless third quarter, injuries sidelined Tampa Bay running back Cadillac Williams (ribs) and quarterback Jeff Garcia (head). Garcia, however, returned to the game. Seattle wrapped up the win with Brown's 46-yard field goal, while QB Matt Hasselbeck completed a 34-yard TD pass to RB Maurice Morris. With the loss, the Buccaneers began their season at 0-1, their third opening day defeat in the past four seasons.
Question: How many touchdowns were scored by running backs?
Answer: 2