(CBS 4 Sports) 

McALLEN – A packed house filled the McAllen Memorial High School Gymnasium to watch a district match-up between the Mustangs and crosstown rivals McAllen High School on Sept. 18. 

Fans roared as introductions were made for each player, but, when it was time to stand an honor the flag with the playing of the national anthem, nothing played. A few laughs and some awkward silence later, a small choir began to form in the far corner of the gymnasium. Soon enough, the entire gym was stressing their vocal chords in the tune of the Star Spangled Banner. 

The crowd celebrated its performance once the song ended and the focus turned back to the court. 

McAllen Memorial would go on to top their crosstown rivals 3-2 with a 15-11 victory in the fifth set.