Liverpool have officially beaten every single club in the Premier League this season.

The Reds' original clash with West Ham United was postponed by the FIFA Club World Cup, but extra planning time did the Hammers little favours as they slumped to a 2-0 home defeat.

The only team to take points off Liverpool this season is Manchester United, securing a 1-1 draw at Old Trafford, yet they came unstuck in the reverse fixture with a 2-0 loss on Merseyside.

It's a statistic that could be lost in all of Liverpool's history making across the campaign, which is a crying shame when you consider how rare of an achievement it actually is, never mind by January.

Bearing that in mind, talkSPORT decided to look at the previous examples of teams beating all 19 of their rivals and it's only happened a measly six times in the Premier League era.

Teams to beat every Premier League club

Therefore, it only makes sense to breakdown the select group of squads to achieve the feat and see who's joining Liverpool in one of English football's most exclusive clubs.

1. Chelsea (2005/06)

That's right, it took almost 15 years for any team to complete the mission and even Jose Mourinho's first Chelsea season, in which they lost just a single game, couldn't put every team to the sword.

However, they did exactly that during their second term as they avenged losses to United, Middlesbrough, Fulham, Blackburn and Newcastle in their respective reverse fixtures.

It certainly helps that the Blues won all but one of their matches at Stamford Bridge - Charlton, of all teams, were the exception - on their way to retaining the Premier League crown.

2. Manchester United (2010/11)

This is one of the most underrated title-winning United sides and the only time that Sir Alex Ferguson got the better of every single Premier League club in the space of a season.

For starters, the Red Devils didn't suffer a single loss until February and their sole defeats to Wolves, Chelsea, Liverpool and Arsenal were all avenged at Old Trafford.

And just like the Chelsea team that came half a decade before them, home form was absolutely invaluable and West Brom were the only side to claim a single point from the 'Theatre of Dreams.'

3. Manchester United (2017/18)

Yes, you read this right. When Mourinho said that leading United to second place was one of his greatest achievements, you've got to say he was spot on when you consider this statistic.

This is the only instance of a team beating every club and not winning the title in the process, losing a slightly scruffy seven matches - including to Brighton and Huddersfield - but exacting revenge each time.

The Red Devils' final tally of 81 points is actually higher than their treble-winning team and with a 3-2 victory at the Etihad Stadium to boot, it seems shocking that they finished 19 points off the pace.

4. Manchester City (2017/18)

That's right, two teams in the same season... meaning every single club suffered at least one defeat to both Manchester clubs during 2017/18, including the Citizens and Red Devils themselves.

It only makes sense that Pep Guardiola's stellar team make the list when they make became the first club to reach 100 points, dropping points in just six games in the entire campaign.

And away form was the key for City. Liverpool were the only team to host them and leave with three points, while Crystal Palace and Burnley proved the other anomalies with surprise draws.

5. Manchester City (2018/19)

The same club achieving the same feat in two consecutive seasons, now that's impressive.

City had a shaky spell during the winter with defeats to Chelsea, Palace, Leicester and Newcastle - more than double the losses from 2017/18 - but were able to hit back when the tables turned.

Finishing with 14 consecutive victories, all against different clubs, was unquestionably key and their 0-0 draw at Anfield ensured runners-up Liverpool didn't join them in beating everyone.

6. Liverpool (2019/20)

Here we are. Liverpool are objectively the greatest Premier League team in history having made it to late January with a near-perfect record that gives them a projected points tally of 110.

Perhaps the most mind-blowing fact about Klopp's side is that they could finish the season having come one game away from beating all their 19 opponents TWICE over. Mental.

An exclusive club

So, there you have it, only six teams have managed it and four have come in the last two years.

We haven't had the most thrilling title races recently, but the quality of Guardiola and Klopp's sides - as well as Mourinho's to a lesser extent - have produced some of the competition's most dominant ever teams.

And it goes to show that finishing a season as 'Invincibles' or treble winners doesn't necessarily make you legendary enough to beat everything the Premier League throws at you.

It is the world's most competitive league, after all.