Colorado (4-2, 2-1 Big 12) vs. Arizona (3-3, 1-3) When/where: 2 p.m. Saturday, Arizona Stadium TV/Radio: KDVR/850 AM BetMGM Line: CU +3, O/U 58.5 Weather: Partly sunny, 71 degrees at kickoff. Series history: CU leads 16-10 (last meeting: Arizona won 34-31 in Boulder in 2023) Three storylines WR depth test: Four Colorado wide receivers left last week’s 31-28 loss to Kansas State with injuries.