https://yestino.com/entities/john-mateer-owen-heinecke-84386cEvery event involving John Mateer Owen Heineckeenhttps://yestino.com/events/ou-football-names-john-mateer-owen-heinecke-7-other-sooners-c96ab5https://yestino.com/events/ou-football-names-john-mateer-owen-heinecke-7-other-sooners-c96ab5Wed, 26 Aug 2026 01:39:35 GMTOklahoma football has named its team captains for the 2026 season including quarterback John Mateer. Sources: Yahoo Sports