Answer based on context:

The Saints dominated the first quarter and entered halftime riding on a 17-3 lead. Tampa Bay scored two touchdowns in the fourth quarter, including a 77-yard kick return by Micheal Spurlock, to tie the game at 17. As time expired, Garrett Hartley  attempted a 37-yard field goal that would have salvaged the game for the Saints, but the kick hooked left. In overtime, Tampa Bay won the coin toss, received the kickoff, and drove down the field to win the game with a field goal, for a final score of 20-17. This was the first time in franchise history that the Bucs defeated the eventual Super Bowl champions.

What quarter did Tampa Bay tie the game?
fourth quarter