San Antonio police are investigating a fight between a fan of UT San Antonio and the University of Texas Rio Grande Valley that was captured on video during Saturday's football game at the Alamodome. The video, which has circulated widely online, shows a physical altercation between a UTSA Roadrunners fan and an 18-year-old UTRGV student who attended the game to support the Vaqueros. Frank Puente, the student's father, said his son, Frankie Puente, and his friends had been seated near the UTSA fan during the game. Puente said the man appeared to be intoxicated and had been taunting the group. "It's just, it's unfortunate," Puente said. According to Puente, the confrontation began after his son placed his foot on a seat next to the UTSA fan to rest his knee. Puente said the other fan objected and pushed his son's foot away. The two exchanged words before the confrontation escalated. A friend of Frankie's began recording, capturing the subsequent fight.