Trying to make it 5 straight wins and stay in contention for the No.&#160;3 seed in the AFC playoffs, the Chargers continued their domination over the Denver Broncos on Christmas Eve. Not only did they stop them from scoring a touchdown for the second time this season they also made it 4 straight victories over Denver. The game started off inauspiciously for the Broncos when Denver QB Jay Cutler fumbled the ball leading to a 40-yard K Nate Kaeding field goal for San Diego, and after a 3 and out, the Chargers gave the ball to RB LaDainian Tomlinson for a 17-yard TD run. The second quarter was relatively quiet as 2 Kaeding Field goals (23-yards & 29-yards) gave the Bolts a 16-point lead going into halftime. In the third quarter San Diego QB Philip Rivers and WR Chris Chambers hooked up on a 14-yard pass and catch to make the score 23-0. Denver finally began to move offensively until a tipped pass was intercepted by San Diego SS Clinton Hart, but some defensive miscues including a San Diego QB Billy Volek fumble led to a 23-yard field goal by Denver K Jason Elam. In the fourth quarter the defense stepped up for the Bolts on 2 fourth down plays and a San Diego CB Quentin Jammer interception sealed the victory for San Diego. The result guaranteed that a San Diego win at Oakland would secure the No.&#160;3 seed in the AFC playoffs. The win in Denver at home made San Diego only the second team in NFL history to shut out every opponent at home in the first quarter, outscoring opponents 81-0.
Question: In which quarter did only one team score?
Answer: first