MANOR, Texas (KXAN) — On Friday, former Manor ISD student turned Dallas Cowboys football player Tyler Guyton hosted a pep rally for the district. Guyton was a First Round NFL Draft Pick last month, and his hometown is Manor, Texas. Dallas Cowboys Offensive Tackle Tyler Guyton to attend a pep rally at Manor Senior High School | KXAN photo/Todd BaileyDallas Cowboys Offensive Tackle Tyler Guyton to attend a pep rally at Manor Senior High School | K…