The Deseret News obtained video of BYU cheer coach Jocelyn Allan apparently being struck in the head by a water bottle thrown by a fan at Rice-Eccles Stadium.

An 18-year-old man has been arrested for allegedly throwing a water bottle onto the field at Rice-Eccles Stadium and hitting a member of the BYU cheerleading team. University of Utah Police said they arrested the man on suspicion of assault Tuesday. So far, there have been no formal charges filed.

BYU cheerleading coach Jocelyn Allan alleges she was knocked out by water bottle thrown at conclusion of BYU-Utah game. BYU confirms it is reviewing the incident.

An 18-year-old was arrested after reportedly throwing a water bottle onto the field during the BYU-Utah game on Nov. 9.

University of Utah police announced they have arrested and charged 18-year-old William Gardner on “a charge of assault, a Class A misdemeanor.” Gardner, who is not a University of Utah student, is charged with “throwing a water bottle onto the field at Rice-Eccles Stadium that struck a member of the BYU cheerleading team during the Utah-BYU football game Nov.

Police are investigating an incident that was caught on video in which BYU cheerleading coach Jocelyn Allan was struck in the head by a water bottle thrown by a fan after the team’s game against Utah on Saturday.

Last weekend's "Holy War" between BYU and Utah was the latest college football game marred by unruly fans who chucked objects onto the field to protest