From a Bucs fan site
 

BREAKING NEWS. TAMPA FL-Buccaneers football practice was delayed nearly 2 hrs today after a player reported finding an unknown white powdery substance on the field. Head coach, Raheem Morris, immediately suspended practice & called the police & federal investigators. After a complete analysis, FBI experts determined that the white substance unknown to players was the GOAL LINE. Practice resumed after special agents decided the team was unlikely to encounter the substance again this season

Bucs @ Saints Preview: Predict the Game - Bucs Nation

That joke is at least 20 years old.

It's still funny!

Almost as old as:

How do you keep the Saints out of your yard?

Put up a goal post.