No. 9 Oregon is favored by two touchdowns against Oregon State. The Ducks are 14-point favorites against the Beavers on Saturday (12:30 p.m., Fox) at Reser Stadium, according to Caesars Sportsbook, BetMGM and DraftKings. The over/under is 50.5. Oregon failed to cover against Idaho (49.5 points) and Boise State (17.5)…