You'ree right. It is about a football player, at least as I see it.
A Wichita Indian plays on the offensive line for a county community college--very likely Coconino College in Flagstaff, Ariz. His job is to "drive the main road," or open holes for his running backs. Meanwhile, he's "searching in the sun" to see whether the defense is overloading its line. He can hear his girl friend leading cheers over the PA system even though the crowd is booing ("I can hear you through the whine")
He and his team mates are preparing for a home game against a team from "down south"--probably the Scottsdale College Fighting Artichokes--who run the Stretch, a pass-oriented offense, which will be ineffective if it snows, as it often does in Flagstaff during the late fall.
LOL
(No doubt the rivalry with the Fighting Artichokes was truly epic...)