Three things: Chargers vs. Vikings

Three things to watch in the San Diego Chargers’ preseason game at Minnesota on Friday night. Kickoff is set for 8 p.m. ET:

1. Philip Rivers: Rivers has looked sharp in the preseason, but he has been intercepted three times. He threw 20 interceptions last season. He needs to cut down on the picks starting right now. His health is key, too, since Rivers will be playing without starting offensive linemen, Nick Hardwick, Tyronne Green and Jared Gaither.

UPDATE: The Rivers dilemma has been resolved. San Diego coach Norv Turner has decided to sit Rivers because of all of the offensive line injuries. Backup Charlie Whitehurst will play instead of Rivers.

2. Play clean on offense: The Chargers’ entire offense was sloppy last week. It needs to make strides in the most important preseason game.

3. Production by receivers: This is likely the last tune-up for Rivers with his receivers. With Vincent Brown out for about half the season, the rest of the corps needs to step up. Rivers must have good rhythm with his receivers in this game.