COL FB: Oregon 49, Arizona 0 23 (UPI) -- Marcus Mariota threw for 262 yards Saturday, including a 55-yard touchdown to Bralon Addison, in No. 3 Oregon's 49- blitz of No. 21 Arizona. Mariota finished with 20 completions in 35 attempts, two scores and an interception for Oregon (4-0, 1-0 Pac-12). The Ducks' defense recorded three interceptions with Ifo Ekpre-Olomu and Troy Hill returning picks for touchdowns. Arizona quarterback Matt Scott was 22-for-44 for 212 yards, but the Wildcats (3-1, 0-1) went 0- for-8 in red-zone opportunities. Ka'Deem Carey had 79 yards on 21 carries and 37 yards on four receptions for the losers.