White Powdery Substance?

The Colorado Buffaloes afternoon football practice was delayed on Monday for nearly 2 hours. One of the players while on his way to practice happened to look down and notice a suspicious looking, unknown powdery substance on the field. CU head coach, Gary Barnett immediately suspended practice while the FBI determined that the white powdery substance unknown to the players was the goal line. Practice was resumed when the FBI special agents decided that the team was unlikely to encounter that substance again.