Manuel Neuer is set for three more seasons at Bayern Munich after penning a contract extension until 2023.

The Germany international has established himself as one of the greats of the modern era and is well-placed to win an eighth consecutive Bundesliga title.

The 34-year-old also counts the 2012-13 Champions League and 2014 World Cup among his career honours, but recent seasons have raised questions over whether he remains the same peerless operator he was during those mid-decade glory days.

Alexander Nubel's pending arrival from Schalke suggests Bayern are keen to insure themselves against any dip in form from their club captain over the coming years, so it feels a good time to ask - is Neuer still an elite goalkeeper when compared to contemporaries widely considered to be at the top of their trade?

HEADING BACK IN THE RIGHT DIRECTION

Sunday's 2-0 win at Union Berlin saw Neuer chalk up his 11th Bundesliga clean sheet of the season.

Aside from the 2017-18 campaign, when injuries restricted him to three top-flight outings, he has reached double figures for shutouts every year of his senior career – dating back to 2006-07 when he managed 13 from 27 games at former club Schalke.

However, having stopped around four of every five shots for the majority of his Bayern days, Neuer's save percentage plummeted to 59.7 last season, while his 23 goals conceded outstripped Opta's expected goals on target (xGOT) number of 20.1.

xGOT gives an indication of the number of goals a goalkeeper should concede based upon the quality of shot faced.

This term, Neuer has those numbers in the right order once more. Although 26 let in is already his highest figure in the Bundesliga since his final season at Schalke (a whopping 44 in 2010-11), his xGOT number is 29.5 and his overall save percentage is back up to a more respectable 70.1.

TER STEGEN PRESSING A CASE FOR DIE MANNSCHAFT?

Having stood apart as Germany's number one for the best part of a decade, Neuer has seen Barcelona's Marc-Andre ter Stegen make an increasingly strong case to displace him in the national team.

Neuer's fitness woes coupled with a disappointing 2018 World Cup performance played a part, while Ter Stegen has arguably established himself as Barca's most important player not named Lionel Messi.

This campaign, Neuer is statistically out-performing his Germany rival. Ter Stegen has conceded 29 times with an xGOT reading of 26, while he has managed eight clean sheets from 26 LaLiga matches.

Last season, Ter Stegen's efforts made for very impressive reading, however, with 16 clean sheets and 32 goals conceded in 35 top-flight matches.

His xGOT was up at 38.3 and his save percentage was 72.7 – better than 65.5 this time around.

Both men have shown themselves to be fine proponents of the modern art of sweeper keeping, although Neuer is more active in this regard of late. According to Opta, Ter Stegen has five "keeper sweepings" to his name in each of the past two seasons, with Neuer making nine and 17.

OBLAK THE LEADER OF THE PACK

Looking beyond Germany's number one and two goalkeepers, there is a clear standout performer.

Jan Oblak's virtuoso display at Anfield as Atletico Madrid ended Liverpool's Champions League defence in March was enough to hearten any keeping enthusiast over the intervening barren months.

Such heroics are not unusual for the Slovenia star, who conceded 27 goals despite an xGOT number of 40.3 in 2018-19.

Oblak finished with 20 clean sheets last season, a figure Neuer touched in the back-to-back 2014-15 and 2015-16 campaigns at Bayern. Remarkably, Oblak had 24 league shutouts (and a save percentage of 81.8) in the latter, while he amassed 22 in 2017-18.

This time around, he only has 11 and his save ratio is below 75 per cent for the first time in his Atleti career, and 21 goals conceded compared to xGOT 22.3 has levelled out.

Oblak's two keeper sweepings in 2019-20 underlines his reputation as more of an "old school" goalkeeper, rather than someone accustomed to raiding out of their penalty area.

DE GEA COMING OFF HIS PEAK

Manchester United's David de Gea is also a player who would be counted as being at odds to the new wave of players between the posts, although a dip in his imperious levels has left the Spain international facing similar questions to Neuer over the past couple of seasons.

If United's second-place finish in the 2017-18 Premier League was one of Jose Mourinho's greatest achievements, it certainly ranks as one of De Gea's. He saved in excess of 80 per cent of shots and kept 18 clean sheets, conceding 28 times in 37 matches.

De Gea has already let in more in 2019-20 (30), while he shipped 54 in an increasingly error-strewn 2018-19. Although, perhaps it is as much a case of performances reverting to a mean and not bailing out some haphazard defending in front of him.

In the past two seasons, United's expected goals against (xG) – based upon the quality of chances afforded to opposition players – read 51.2 and 30.2.

SAFE HANDS AT THE BACK OF KLOPP'S MACHINE

Liverpool have transformed from great entertainers to a relentless winning machine since Alisson arrived from Roma in 2018, with Adrian's flimsy showing against Atletico in European competition serving as an uncomfortable reminder of the recent past for the Reds.

Able to build from the back, Brazil's number one has 29 keeper sweeping in a 58-game Premier League career, while also dealing well in the old currency of clean sheets, tallying up 31 in the competition.

Undoubtedly well protected by a defence led by Virgil van Dijk, Alisson is reliable when called upon. His 2019-20 save ratio is up to 80.4 from 77.1 per cent.

Last season, he out-performed his xGOT of 27.5 by letting in just 22, although 11 conceded is slightly higher than a staggeringly low 9.7 xGOT in 2019-20.

That number drops from an xG against of 17.5, suggesting Alisson – who missed an early chunk of the current season due to a calf injury – has also benefitted from wasteful finishing by opponents during Liverpool's march towards the title.