After another high scoring affair in San Diego, the Ravens returned to Baltimore with a one-game lead on the Steelers and Bengals and hosted their first AFC North Division game against the Cleveland Browns. (Coincidentally, the Bengals host the Steelers in divisional play in week three as well.) Although this was the third consecutive high-scoring game for the Ravens, this was not a close contest. The Ravens struck early on the first of two touchdown runs from Willis McGahee, and would increase their advantage on a Hauschka field goal. In the second quarter, after another Hauschka field goal, McGahee found the end zone again. His second rushing TD leads the NFL with five. Although the Browns wanted to prove they were up to the challenge of contending with a quality football team, miscues thoroughly undid the Browns as quarterbacks Derek Anderson and Brady Quinn combined for four interceptions. Quinn was benched at the half in favor of Anderson, but Anderson was no better than his maligned counterpart. The third quarter only saw another touchdown for the Ravens, but was a special one for Ray Rice, as it was his first career NFL touchdown. The final minutes of the third quarter also saw the Browns' longest drive of the day, but as time expired in the third quarter, the Browns were stopped short of the end zone. The fourth quarter opened with the Browns' only points of the game on a field goal from Billy Cundiff, a free-agent signee since kicker Phil Dawson was inactive due to a leg injury. The final points of the contest came on the third Anderson interception, which was Ed Reed's first of the season. Flacco's touchdown was not only the longest of the season for him to date, but was the only passing touchdown all day. He hit a wide-open Derrick Mason after a blown coverage in the Browns secondary for a 72-yard touchdown. With the win, the Ravens improve to 3-0 and improve to 1-0 in the AFC North.
Question: How many interceptions did the Ravens defense catch?
Answer: 4