NFL This Week's Osi Umenyiora and Jason Bell discuss whether the Kansas City Chiefs defence can carry them through the play-offs or whether their misfiring offense will need to improve.

It's like the good old days when the NFC East actually meant something, as the Dallas Cowboys head to Washington with something actually riding on the game.

Three defeats in five for Dallas and four straight wins for Washington means the Football Team are on their heels, and they play each other twice in the space of a few weeks.

Washington became just the second team ever to start 2-6 but make the play-offs last season, and with five divisional games to finish they’re in with a chance of doing it again - late runs are now obviously their thing!

Both teams have been playing really tough on defence the last few weeks, so this one will be tough, and much will rest on Dak Prescott.

Dallas have won seven of their last 10 games in Washington.

Image source, Getty Images

Here's how the three teams who can clinch their play-off spots this week can do it.

Arizona Cardinals (10-2) v LA Rams (8-4) - Tuesday 01:15

Arizona clinches play-off berth with:

• 1. ARI win or tie OR
• 2. MIN loss or tie + SF loss OR
• 3. MIN loss or tie + NO loss or tie + CAR loss or tie OR
• 4. SF loss + NO loss or tie + ATL/CAR tie

Green Bay Packers (9-3) v Chicago (4-8) - Monday 01:20

Green Bay clinches NFC North division title with:

• 1. GB win + MIN loss or tie OR
• 2. GB tie + MIN loss

Green Bay clinches play-off berth with:

• 1. GB win + NO loss or tie + SF loss OR
• 2. GB win + NO loss or tie + LAR loss + SF tie

Tampa Bay Buccaneers (9-3) v Buffalo (7-5) - Sunday 21:25

Tampa Bay clinches NFC South division title with:

• 1. TB win + NO loss or tie + CAR loss or tie

Tampa Bay clinches play-off berth with:

• 1. TB tie + CAR loss + NO loss + MIN loss + SF loss or tie + WAS loss or tie

Watch DeAndre Hopkins, Jared Goff & Logan Thomas star in our plays of the week for last week's action.

Also see the Seattle Seahawks pull off a fantastic fake punt...

• Baltimore Ravens v Cleveland Browns
• Jacksonville Jaguars v Tennessee Titans
• Las Vegas Raiders v Kansas City Chiefs
• New Orleans Saints v New York Jets
• Dallas Cowboys v Washington Football Team
• Atlanta Falcons v Carolina Panthers
• Seattle Seahawks v Houston Texans
• Detroit Lions v Denver Broncos (21:05)
• New York Giants v Los Angeles Chargers (21:05)
• San Francisco 49ers v Cincinnati Bengals (21:25)
• Buffalo Bills v Tampa Bay Buccaneers (21:25)
• Chicago Bears v Green Bay Packers (01:20)

Welcome back NFL fans! It's Week 14, we're closing in on Christmas and the play-off race is really starting to get serious.

The Arizona Cardinals, Green Bay Packers and Tampa Bay Buccaneers can clinch play-off places this weekend depending on their results and games elsewhere.

Beyond that, though, it's turning into an almighty scramble for the post-season.

Every AFC team has lost at least four games, and in the NFC, Washington and San Francisco sit in the last two spots despite being just 6-6 for the season. They have five teams lining up behind them, though, just a game back.

Tampa Bay and Green Bay are both in action tonight, as are AFC challengers Tennessee and the red-hot Kansas City Chiefs.

We won't get all the answers tonight but we'll get plenty of action as every game is vital at this stage. Stay tuned!