One team will advance to the divisional round of the NFC playoffs when the Philadelphia Eagles host the Seattle Seahawks in a Wild Card game on Sunday. Kickoff is at 4:40 p.m. ET. Philadelphia is a one-point favorite in the latest Seahawks vs. Eagles odds, while the over-under for total points scored is 45. 

Before locking in any Seahawks vs. Eagles picks or NFL playoff predictions, you NEED to see what Mike Tierney has to say.

No one knows football like Tierney. The veteran sportswriter, whose work has appeared in The New York Times and Los Angeles Times, has covered football of all levels for decades. And that expertise has been evident since he joined SportsLine in 2016. He is 58-31 on his last 89 NFL picks for a profit of $2,391 to $100 bettors and is coming off a Week 17 in which he went 8-3 against the spread. He's SportsLine's No. 1 NFL expert this season. Anyone who has followed him is WAY UP.

Now he's studied Seahawks vs. Eagles from every possible angle. We can tell you he's leaning Under, and he's also found a critical X-factor that has him jumping all over one side of the spread. You ABSOLUTELY need to see it before you lock in your own picks.

So who wins Seahawks vs. Eagles? And what critical X-factor makes one side of the spread a must-back? ... Join SportsLine right now to see which side of the Seahawks vs. Eagles spread you should be all over on Sunday, all from the expert who's up almost $2,400 on his last 89 NFL picks!