The Eagles kicked off the 2016 season against the Cleveland Browns. 2nd Overall pick Carson Wentz made his debut. The Eagles started off well. Wentz threw his 1st career TD to Jordan Matthews. Caleb Sturgis missed a field goal in the 1st Quarter but did made one early in the 2nd Quarter to extend the lead to 10-0. The Browns would respond early in the 2nd quarter with an Isaiah Crowell 1 yard TD to cut the Eagles lead to 10-7. The Eagles only managed to kick another Sturgis field goal in the 2nd Quarter which resulted in a 13-7 lead at halftime. The Browns then kicked another field goal to change the score to 13-10. Midway through the 3rd Quarter, a bad snap by Browns center Cameron Erving went over the head of Quarterback Robert Griffin III and into the end zone for a safety and it extended the Eagles lead to 15-10. Following that drive, Wentz and the offense went back to work . Wentz threw his 2nd TD to Nelson Agholor to change the score to 22-10. The Eagles mainly burned out the clock in the 4th quarter to weaken the Browns hopes of a comeback. Ryan Mathews sealed the game with a 1 yard TD to make the final score 29-10.

Based on the above article, answer a question. How many missed field goals were there in the first half?
1