It's a divisional match-up special this Sunday on Sky Sports!
Another NFL triple-bill begins live on Sky Sports Action (407) from 5.30pm, starting with an AFC North divisional clash between the Pittsburgh Steelers and the Baltimore Ravens.
We then head to Denver for the equally mouth-watering AFC West divisional game between the Broncos and the Oakland Raiders from 9.25pm, before the Seattle Seahawks host the Indianapolis Colts from 1.20am.
As well as all of that, NFL RedZone will be live on Sky Sports Mix (121) from 6pm. Here's a look ahead to a super Sunday of NFL...
Pittsburgh Steelers @ Baltimore Ravens, Sky Sports Action (407), 5.30pm
In 140 characters…
A pivotal clash as early as Week Four - these two likely to be battling for AFC North crown and winner here will earn two-game advantage.
What's the latest?
The Steelers have said they will be on the field during the national anthem in Sunday's game against the Ravens, though the team hasn't decided yet whether players will stand or kneel.
Every Steeler but left tackle Alejandro Villanueva remained in the tunnel while the anthem played before their loss in Chicago against the Bears last week. Ben Roethlisberger says a miscommunication led to Villanueva, a West Point graduate and Army veteran, being left alone by the field.
Stat attack
The Steelers & the Ravens have met 21 times since 2008, with 16 of those games decided by seven points or fewer and 12 of them won by a three-point margin or less.
It makes this comfortably the closest current match-up in the NFL - the Dallas Cowboys and Washington Redskins in the NFC East is next best, with eight of their last 18 games decided by three points or fewer.
Key battle
Steelers offence versus Ravens defence. Baltimore had recorded five takeaways in each of the team's first two games of the season before a disaster showing against the Jacksonville Jaguars at Wembley. Can they bounce back and recapture their earlier form? As for Pittsburgh, their offence hasn't quite yet fired, particularly running back Le'Veon Bell, who has been held to only 3.5 yards a carry and is yet to have a 100-yard game this season.
Game-changer
Antonio Brown. While the Pittsburgh offence as a whole hasn't exactly been clicking, the powerful wide receiver has - Brown has tallied two 100-yard plus games in his first three outings, including a massive 182-yard day against the Cleveland Browns in Week One when he last went up against divisional opponents.
Oakland Raiders @ Denver Broncos, Sky Sports Action (407), 9.25pm
In 140 characters…
Derek Carr leads Oakland in to Denver to face the 'no fly zone' defence in a crucial AFC West match-up, with both teams coming off losses.
What's the latest?
The Raiders may be without leading receiver Michael Crabtree for the game after he missed practice Friday because of the lingering effects of a chest injury he suffered during the team's Week Two defeat to the Redskins.
Stat attack
Khalil Mack (Raiders) and Von Miller (Broncos) have combined for 55.5 sacks since 2015, leading the NFL. Mack's 28 just edges out Miller's 27.5, though the Denver man has the form in this match-up, registering at least one sack in four of the last five meetings.
Key battle
That battle between the two premium pass rushers in the game is likely to be the key one. Both quarterbacks are coming off poor outings - Derek Carr threw for just the 118 yards and gave up two interceptions in Oakland's defeat to Washington, while Trevor Siemian was also picked off twice, and gave up a fumble, against the Buffalo Bills. Mack and Miller will smell blood.
Game-changer
Carr. Though the Raiders QB had his poorest game in some time last weekend, he is still quite rightly considered one of the best young passers in the game. If he is to be in a league MVP conversation come the end of the season, going into Denver and coming away with the win against their 'no fly zone' defence will go a long way to doing that.
Indianapolis Colts @ Seattle Seahawks, Sky Sports Action (407), 1.20am
In 140 Characters…
Two struggling teams meet in Seattle. Will a '12th man' inspired Seahawks get their season back on track or will the Colts cause an upset?
What's the latest?
Andrew Luck has been ruled out playing against the Seahawks, as he continues to recover following surgery on his throwing shoulder in January, but Colts coach Chuck Pagano has said there is "a chance" the starting QB could be back on the practice field next week.
Without Luck, Indianapolis has turned to second-year quarterback Jacoby Brissett, who has played well in his first two starts. He ran for two touchdowns and threw for another in last week's win over Cleveland.
Stat attack
Colts kicker Adam Vinatieri has made 534 career field goals during his 22-year career. With four more against Seattle on Sunday night, he would tie Gary Anderson (538) for the second-most made in NFL history. Morten Andersen (565) and top spot could well be in his sights this season too.
Key battle
Can the Colts run on the Seahawks defence? Most teams have been able to so far this season - Carlos Hyde put up 124 yards in Week Two, while it was DeMarco Murray (115 yards, one TD) doing the damage last Sunday. The problem is, Indianapolis have 34-and-past-his-prime Frank Gore and unproven rookie Marlon Mack in the backfield - Gore's 57 yards last week against the Browns was a team high for the season. He is at least familiar with this Seattle team, however, from his days as a San Francisco 49er.
Game-changer
Russell Wilson. Seattle's problems, as usual, have been trying to keep their quarterback upright in the pocket, with the offensive line continuing to struggle. In spite of it though, Wilson dazzled last Sunday, picking off the Tennessee Titans defence to the tune of 373 yards and four touchdowns. The Seahawks will want more of the same Wilson magic...
Week Four continues on Sunday with three live games on Sky Sports Action, starting with Pittsburgh Steelers @ Baltimore Ravens, from 5.30pm
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