Liverpool, Chelsea and Bayern Munich are circling to secure the signature of the coveted £40m defender Dayot Upamecano.
The centre-back graduated to first team football at RB Salzburg, the pioneering Austrian club that has a big reputation for the development of young players.
Now at German side, RB Leipzig, he looks sure to move again, and Bild have reported the Reds, Blues and Bayern have all made contact with Upamecano's representatives about a move for the 22-year-old.
While Bayern chief executive Karl-Heinz Rummenigge has delared his interest in Upamecano, the French powerhouse defender is a natural pick for Liverpool, not just as a stand-in, but ultimately as a partner for Virgil van Dijk.
And Liverpool have form when it comes to signing Salzburg's graduates.
Sadio Mane, Naby Keita and Takumi Minamino, have all enjoyed short, but transformational periods at RB Salzburg, before eventually slotting in at Anfield.
And after the last of that trio signed for Liverpool last year, the Austrians tweeted: 'Hey @LFC, who's next? #MadeInSalzburg'.
The answer could well be Upamecano.
Liverpool are big fans of the Red Bull team's approach to player development, which consistently delivers top performers who play at the pinnacle of European football.
As well as Keita and co, midfielder Dominik Szoboszlai now with RB Leipzig, right back Stefan Laimer and Hannes Wolf, both at Borussia Monchengladbach, the latter on loan, came straight out of the Red Bull academy.
Add to that Borussia Dortmund's Erling Haaland who spent a year at RB Salzburg aged 19 and RB Leipzig's midfielder Amadou Haidara, who moved to Austria from Bamako in Mali aged 18, and it's clear something good is going on.
And Salzburg played a crucial role too, in Upamecano's transition from youthful prospect aged 16, to the real deal during 18 months in Austria, before his move to Leipzig.
So, what is the secret of Salzburg?
It begins at the Red Bull Academy and Salzburg's feeder club, FC Liefering, where both Haidara and Upamecano earned their spurs.
Here the philosophy is defined and it runs all the way through to the first team.
'The game and training philosophy is set in stone with us,' said said Manfred Pamminger, the CEO of the Red Bull Football Academy and FC Liefering.
'Every single coach, every single employee and every single player operates according to this idea. That's the key to our success.'
Salzburg's strategy is based on recruiting young players from the age of 14 to 20 and developing footballers who have speed, intelligence, physicality, a strong mentality and good character, who they can shape for high-energy football.
The approach is based on an intriguing mix of technology to enhance the qualities they want to develop and old-fashioned values, which ban baseball caps and mobile phones at dinner and limit the size of TV screens in academy players' rooms to a modest 40 inches.
'A lot of the things that we train and test in the academy are based on our playing style. Speed is an important factor for us, so that is something that is given a high priority, and this is reflected in our measuring tools,' Pamminger told Sportsmail.
'We focus on cognitive development too, as a lot goes on in this area and we still see opportunities to develop our players even better in this regard.'
Salzburg has been credited with looking for players who are 'fast in the head', as well as skilled with their feet and they were one of the first clubs to develop a virtual reality system - called the 360 Soccerbot - to test players' decision making and technique.
Rather like a futuristic shooting gallery, the system generates targets on a 360-degree screen, which players have to hit under pressure, while their performance is assessed from every angle.
The data is then analysed to develop physical as well as cognitive performance, such as choice and judgement.
Even more intriguingly, the Soccerbot can replicate exact scenarios from matches so a player can relive passages of play and learn from their mistakes.
'You can transfer real match situations to the Soccerbot and then replay a situation in which a player made a wrong decision about a pass, for instance, to train them what the better option would have been,' added Pamminger.
The state-of-the-art academy complex is at Liefering, wedged between the city's two rivers, the Saalach and the Salzach.
The training complex opened in 2014 on a site of 12,000 square metres, where 200 young players from seven countries are supported by 120 staff and a lot of computing power.
Data gathered from six outside pitches, a five-a-side zone and indoor football hall, the soccerbot, gym and sprint track is stored on the cloud, integrated and analysed for each individual, to allow coaches to draw conclusions about the quality of play as well as the traditional metrics of speed and distances.
And everywhere there is that curious intermingling of new and old.
Next to the high-tech sensors are faintly old-fashioned slogans adorning the walls, such as: 'Talent gets you to the start. Attitude to the finish' and 'Meet your toughest opponent - yourself'.
The proof of Salzburg's success can be seen on the pitch, where they have won the Austrian Bundesliga for the past seven years straight, made progress in the Europa League and their youngsters won the UEFA Youth League in 2017.
You can also see it in the money they make in the transfer market. A number of top players have moved to Salzburg's affiliate club, RB Leipzig, which does not always go down well with the locals.
They include Keita for £27m in 2016, (who then moved to Liverpool for £55m) and Upamecano, who moved for just £9m in 2017 and Szoboszlai made the switch for £18m in January.
In the last five years, Salzburg has made a net profit in the transfer market of £236m, according to the website, transfermarkt.com.
The key to Salzburg's success in player trading is that they have anticipated - and perhaps helped to shape - the critical themes of the modern game.
Players are trained to be able to cope with the counter-pressing and quick switching that are the hallmarks of most of the continent's top sides. It's easy to see why Jurgen Klopp and Liverpool like players to be Made in Salzburg.
'Our lads have to be extremely fast - that's what our game system is designed for. And in modern football, 90 per cent of all sprints are no longer than 20 metres,' explains Pamminger.
To achieve this the academy has developed a sophisticated sprint training facility connected to a computer. The system adjusts the tension on a rope attached to the player so he has to exert maximum force to complete the drills, building power.
In the gym, the movement of every weight and barbell is tracked using infrared cameras to calculate the exact power a player is generating, which can then be optimised.
Even injuries are managed in a different way, using a 'moonwalker' which allows the player to return to running in an almost weightless environment.
Officially termed an anti-gravity running track, the facility, which was originally designed to train astronauts, speeds up a player's comeback by reducing their weight by up to 80 per cent so that they can return to running early in their recovery without aggravating their injury.
On the track, the player wears airtight trousers with an air chamber that reaches to the hips. A blower creates pressure in it, which reduces the body weight.
Above the door to the high-tech Liefering academy complex is the slogan: 'Enter the next level.' It is an accurate description of the coaching, the players' experience and the standaRd some of them achieve.
'We are convinced that [our] players, who undoubtedly were already great talents when they came to us, have become the players they are today thanks to our work and facilities,' said Pamminger.
And that's why, 'Made in Salzburg', is now a high-value brand in European football. Hey, @LFC! Who's next?