A look at what to expect in Friday night's NFL preseason games (all times EDT):
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SEAHAWKS AT CHIEFS, 8 p.m.
Two teams with more in common than one might think meet in their second preseason game when Seattle visits Kansas City.
Start with the offensive line: Both teams have no idea who will be starting when the regular season rolls around. The NFC champion Seahawks have tried five options at left guard in camp, the latest move taking right tackle Justin Britt and sliding him over, all while converted defensive lineman Drew Nowak tries to play center.