It seemed on a frenzied January night in Kansas City as though the AFC title would be decided by the toss of a coin.

The Kansas City Chiefs were the beneficiaries, coming up the field one last time to beat the Buffalo Bills, but Patrick Mahomes and Co. were not to make the Super Bowl.

That the Chiefs were stunned by the Cincinnati Bengals in the AFC Championship Game said a great deal for the strength in depth of the conference.

And that has been ratcheted up to another level over the course of the offseason, with Russell Wilson and Davante Adams among the notable names traded into the AFC.

The NFC may still have the defending Super Bowl champions, but there are no shortage of contenders here – including as many as four in one wild division out west.

The favourites

The Chiefs and the Bills would both have been hugely disheartened by the manner in which their seasons ended. Kansas City had the fortune that deserted Buffalo but were unable to make the most of their reprieve against the Bengals.

But that will merely make Mahomes and Josh Allen two of the more motivated superstars heading into the new season.

Mahomes is now without Tyreek Hill, yet the Chiefs' offensive line went from strength to strength as last season wore on, ranking third in pass protection win percentage by the year's end.

Meanwhile, Allen showed in that playoff blockbuster he can be every bit a match for Mahomes at his best. He threw nine touchdown passes across his two playoff games; no player had previously thrown more than seven while playing two games or fewer in a single postseason.

Allen will hope not to get the chance to better that record, this year targeting a run that goes far beyond the Divisional Round.

In the mix

The Bengals of course have to be considered after pushing the Los Angeles Rams all the way, while the Tennessee Titans actually matched the Chiefs for the best regular season record in the AFC despite Derrick Henry being limited to eight games, though the trade of receiver A.J. Brown to the Philadelphia Eagles may restrict their ceiling on offense and ability to compete this year.

Deshaun Watson's suspension will give the Cleveland Browns work to do just to make the playoffs, but they may well be a serious threat if they get there.

A conference packed with quarterback talent also includes former MVP Lamar Jackson, who is fit again and looking to set the Baltimore Ravens back on course after a difficult 2021 in which they finished bottom of the AFC North.

But if the Chiefs are the team to beat, perhaps one of their division rivals can cause an upset. Each of the Los Angeles Chargers, the Denver Broncos and the Las Vegas Raiders have reasons to be optimistic.

Four contenders in the wild, wild AFC West

The Chiefs have won the AFC West six years in a row, but there is no guarantee that will become seven. The scale of the challenge before Kansas City represents a big boost to their AFC rivals – and to the neutrals, licking their lips at a must-watch season-long tussle.

Justin Herbert has long looked like making the Chargers contenders, with just the 14th 5,000-yard passing season in league history helping his offense finish fourth in the league in yards per game (390.2) and fifth in total points scored (747) last season. Crucially, the Chargers have added defensive help in the form of Khalil Mack and J.C. Jackson now, too.

Yet their offseason work perhaps pales next to that of the Broncos and the Raiders.

Wilson left the Seattle Seahawks for Denver, who promptly handed him a huge contract, clearly feeling he and Nathaniel Hackett can be the QB-coach combo they have been missing to return them to the postseason.

Support for that belief comes from Wilson's performance in quarterback Efficiency Versus Expected (EVE), which measures a signal-caller's performance in expected passing situations against the league average. Despite playing only 14 games on a Seahawks team that finished in the NFC West cellar, Wilson was still 13th in EVE, just behind Tom Brady.

Meanwhile, Adams has reunited with former Fresno State team-mate Derek Carr on the Raiders, with Stats Perform's positional rankings subsequently considering Las Vegas to have the most talented skill players in the NFL.

The Chiefs will undoubtedly now be made to work for the division after years of dominance. 

Lamar out to right last year's wrongs

With half of the conference potentially in contention for a Super Bowl run, there is perhaps no true sleeper pick, but the Ravens will expect to go from worst to first in their division.

Much will depend on a return to form for dual-threat superstar Jackson.

Baltimore were firmly on course for the playoffs at the time of the ankle injury that kept Jackson out of the run-in in 2021, collapsing thereafter. However, it had already been by far the QB's worst season as a regular starter.

After 3,127 passing yards and 36 passing TDs and 1,206 rushing yards and seven rushing TDs in his MVP season of 2019, Jackson had regressed slightly in 2020 and struggled further last year both through the air and on the ground.

In 12 games, Jackson threw just 16 TDs to 13 interceptions, while his 767 rushing yards saw him finish second among QBs to Jalen Hurts – a category he had dominated in the previous two campaigns.

Everything the Ravens do when they are good goes through Jackson, so his performance level will make or break their season.

Can Tua turn his fortunes around?

With the wealth of talent at the top of the AFC, there must also be some dregs at the bottom. The Miami Dolphins might fear they belong instead to that category.

The Dolphins made their own big move this offseason, taking elite receiver Hill out of the AFC West to give Tua Tagovailoa little excuse in his third season.

Hill got open on 82.7 per cent of his targets last season, with those skills of separation sure to come in useful when attempting to link up with a passer in Tagovailoa who threw to an open target just 73.8 per cent of the time.

The Dolphins are not expecting Tagovailoa to be Mahomes, but they need him to be much better than he has been thus far for this project to work.

The Match will return in 2022 and this time it will pit two of the NFL's greatest quarterbacks of all time against two well on their way to assuming the same title.

Aaron Rodgers and Tom Brady were on opposing teams in The Match IV last year, Rodgers and Bryson DeChambeau beating Brady and Phil Mickelson, but the two future Hall of Famers will team up this time around.

Indeed, Brady and Rodgers will face off against two quarterbacks who are rapidly developing a compelling rivalry of their own on the field in Kansas City Chiefs star Patrick Mahomes and Josh Allen of the Buffalo Bills.

Mahomes and Allen faced off in one of the best playoff games in NFL history last season as the Chiefs fought back to beat the Bills in the AFC Divisional Round 42-36 in overtime, Kansas City having led a game-tying field goal drive in just 13 seconds to force the extra period.

There is no doubt they are the future of the NFL, but the June 1 meeting in Las Vegas with Brady and Rodgers will mark the first time their golf game will be on show for a worldwide audience.

Announcing the matchup on Twitter, Brady made it clear he and Rodgers are ready to strike a blow for the NFL's old guard.

He wrote: "We tried to make this a tag team cage match but the lawyers said our contracts wouldn't allow it… #CapitalOnesTheMatch is back, June 1st. Let's kick their a**."

Josh Allen called on the Buffalo Bills to maintain the same urgency in their bid to reach the Super Bowl after records tumbled as they demolished the New England Patriots.

The Bills thumped AFC East rivals the Patriots 47-17 on Saturday to reach the Divisional Round of the NFL playoffs.

Buffalo led 27-3 at halftime after an explosive start and Allen set a team playoff record with five touchdown passes in a fine performance.

Sean McDermott's team inflicted the biggest margin of defeat in the playoffs for the Patriots since Bill Belichick took charge in 2000.

The rampant Allen had more touchdowns (five) than incomplete passes (four) as the Bills scored a TD on all seven drives and went the whole game without a punt, field goal or turnover – a first in the NFL playoffs.

Per Stats Perform data, Allen became the first QB in NFL history to complete at least 80 per cent of his passes, throw for 5+ TDs and also rush for 50+ yards (66) in a single game.

Up next will be either a trip to the Kansas City Chiefs in a rematch of the AFC Championship from last season or a home game against the Cincinnati Bengals.

That will be decided by the outcome of the Chiefs' matchup with the Pittsburgh Steelers on Sunday, but regardless of the next opponent Allen knows the Bills need more of the same.

"We feel good," Allen said, per ESPN. 

"When you are going into every game with a win-or-go-home mentality, and that's really what we've had in the last few weeks, just the attention to detail in practice – guys are more attentive.

"The urgency is there, and you're seeing us play better because of it. We're going to need that same mentality this week.

"There are some things that we can clean up and work on, but we moved on, we're on to the next one and it doesn't matter what we did – it's what we do next week."

The dominant nature of the Bills' performance gave them a rare opportunity to savour the atmosphere on a cold night at Highmark Stadium.

"It's not often in coaching you can enjoy the last six minutes of a game and kind of look up in the stands and see the fans enjoying it and at home," said head coach McDermott.

"I'm happy for them more than anything. For us as a team this year, it's one game. 

"[The Patriots] – that is a good football team and they've been at the top for so long. So, we have a lot of respect for them. We've just got to keep moving on."

Asked about the fantastic display from Allen, he added: "It's fun to watch young players develop. There's a lot that goes into that. 

"Number one is the player, in this case Josh, taking greater ownership of his development and his preparation this week. That is what led him to the results you saw on the field. It's pretty black and white that way."

Josh Allen produced a franchise postseason record display with five touchdown passes as the Buffalo Bills thrashed the New England Patriots 47-17 in Saturday's AFC wild card game.

The Bills cruised into the divisional round after racing to a 27-0 lead early in the second quarter led by quarterback Allen who found Dawson Knox for two early touchdowns.

Allen ended the game completing 21 of 25 attempts for 307 yards as well as 65 rushing yards.

The 25-year-old QB recorded a Bills playoffs record with his five touchdown passes, while it was the 10th game in postseason history with 300 or more pass yards and five or more passing TDs.

The remarkable offensive performance meant the Bills have recorded 25 points or more in 13 games this season, which is the most in the NFL.

Running back Devin Singletary scored two touchdowns with 16 carries for 83 yards, while Knox registered 88 yards for his five receptions including his two first-quarter TDs.

Wide receivers Gabriel Davis and Emmanuel Sanders along with offensive lineman Tommy Doyle also scored TDs for the Bills.

Patriots QB Mac Jones, making his playoffs debut, threw 24 of 38 passes for 232 yards with two touchdowns but also two interceptions. Wide receiver Kendrick Bourne scored two TDs from his seven receptions for 77 yards.