This week marked the return of former Eagles head coach Andy Reid. The Eagles forced the Chiefs to a quick three-and-out, but the Eagles miffed the punt, and the Chiefs recovered at the Philadelphia 8. A few plays later, Ryan Succop kicked a 33-yard field goal. On Philadelphia's first possession, Michael Vick was intercepted by Eric Berry, on a pass intended for Brent Celek, who returned it 38 yards for a touchdown. After a Chiefs punt, Michael Vick busted off a 61-yard run, setting up his 22-yard touchdown pass to Jason Avant. Zach Ertz attempted to run in the 2 pt. conversion, but failed, keeping the score 10-6. With less than a minute remaining in the first quarter the Eagles drove into Chiefs territory, but Vick was sacked by Justin Houston and fumbled. Two field goals by Ryan Succop was the only scoring of the second quarter, giving the Chiefs a 16-6 halftime lead. An Alex Henery field goal was the only score of the third quarter, giving the Chiefs a 16-9 lead entering the fourth quarter. On their first drive of the fourth quarter, Jamaal Charles capped off a 8 play, 62 yard drive with a 3-yard touchdown run, making the score 23-9. The Eagles immediately responded with a touchdown of their own, driving 78 yards with a 41-yard touchdown rush by LeSean McCoy, pulling to within 7. However, Kansas City struck the decisive blow with a 15 play, 73 yard drive, taking 8:15 off the clock and Ryan Succop adding his fourth field goals making the score 26-16. On their next drive, Michael Vick completed a 19-yard pass on 3rd-and-10, but guard Todd Herremans was called for holding making it 3rd-and-20 at their own 21. The Eagles turned the ball over on downs. The Chiefs did the same on their next drive. Finally, a strip sack by Justin Houston with recovering for Kansas City, sealed the deal. With the loss, the Eagles lost their second in a row, both being at home. The Eagles out gained Chiefs 431-394 and had more first downs, 21-19, but the Chiefs dominated TOP 39:07 to 20:53 and won the turnover battle 5-0.
Question: How many sacks did Justin Houston have?
Answer: 2