For the first time this century, the Green Bay Packers will play an NFL game – regular-season or exhibition – outside the United States as they face the Oakland Raiders on Thursday night at 8 p.m. ET. The Week 3 preseason matchup is at Investors Group Field in Winnipeg, Manitoba, Canada. Green Bay is a 1.5-point favorite with an over-under of 38.5.

Before you make any Packers vs. Raiders NFL Week 3 preseason picks, make sure you read what SportsLine expert R.J. White has to say.

White has been SportsLine's top pro football analyst for two-plus seasons. Over that span, the CBS Sports NFL editor and nationally recognized NFL Draft expert has gone 214-164 on against the spread picks, returning over $3,200 to $100 bettors.

The stats guru, whose picks are coveted by fans everywhere, has cashed huge in the world's most prestigious handicapping tournament -- the Westgate Las Vegas SuperContest -- twice in the past four years. He's also a Packers expert, hitting on 24 of his last 28 against the spread picks involving Green Bay. Anyone who has followed him is WAY UP.

White has scoured the rosters and made his picks for Packers vs. Raiders. We can tell you he's leaning under, but White has isolated a critical X-factor that has him going big on one side of the spread. You ABSOLUTELY need to see what it is before locking in any picks of your own.

Who wins Thursday's Packers vs. Raiders preseason matchup? And which critical X-factor makes one side of the spread hit HARD? ... Join SportsLine right now to see which side of the Packers vs. Raiders spread to back, all from the top-ranked NFL handicapper who is 24-4 on Packers picks!