Matt Larson | Big Sioux Media With just :37 left on the clock, Mason Mathieu scored on a 12-yard run to give the Tri-Valley Mustangs a come-from-behind win over the Vermillion Tanagers at home on Friday, September 11th. The Mustangs won 22-17. The Mustangs held a one-point lead over Vermillion at the end of the…
