Why watch: The Vikings will get some work for their retooled offensive line, where T.J. Clemmings should start at right tackle after Phil Loadholt's season-ending Achilles injury. Making sure Clemmings can handle the spot will be a major focus for the rest of the preseason, and he'll get some more work with the first-team offense after replacing Loadholt last week.
Did you know: There's plenty of familiarity between the Raiders and the Vikings; new Raiders head coach Jack Del Rio played for the team for four seasons. Offensive line coach Mike Tice was the Vikings' head coach from 2001-05, and offensive coordinator Bill Musgrave had the same job in Minnesota from 2011-13, where he coached Raiders backup QB Christian Ponder as the Vikings' starter. And the Raiders' first-round pick, wide receiver Amari Cooper, was a teammate of Teddy Bridgewater's in high school.