When Aladji Bamba made his full senior debut for Monaco in September, few outside the Principality's training ground had heard of him. Eleven league starts later, the 20-year-old has completed a £35.5 million move to Newcastle United — and those closest to his development believe the Magpies may have got themselves a bargain.

A debut that announced him

That first start came away at Auxerre, and it left a lasting impression on Abel Lorincz, Monaco's technical coach last season, who worked specifically on defensive shape and set-pieces. "He was so calm on the ball and gave a very good impression," Lorincz tells Sky Sports.

Bamba completed 74 of his 78 passes in that game and won more aerial duels than any other player on the pitch — a remarkable showing for a teenager making his senior bow. Monaco coach Adi Hutter remarked at the time that Bamba played with the composure of a seasoned professional.

The duel machine

That physical edge has become a defining feature of Bamba's profile. He averaged 9.06 duels won per 90 minutes across Ligue 1 last season — more than any other player in the division. The numbers break down further: he ranked second for ground duels won and fourth for tackles, confirming that his dominance is not simply a product of his height.

"He has the physicality, he has the aerial ability," says Lorincz. It is no surprise then that Newcastle manager Eddie Howe has publicly identified Bamba as a deep-lying midfielder. But those who know him say that label captures only part of the picture.

More than just a destroyer

Monaco's subsequent head coach Sébastien Pocognoli described Bamba as an unusual player, and the data backs that up. Twenty3's modelling tool places his defensive profile closest to Joao Gomes — who has just joined Aston Villa for a comparable fee. Yet where Gomes is relentless and combative in style, Bamba operates with a loping, languid ease that can be deceptive.

"He was switching the play against a team sitting in a low block," recalls Lorincz. "His main attribute is playing against a low block — those precise little passes to unlock a compact defence. He is really good at it, and good at turning under pressure."

Bamba credits years of indoor football for a small but telling habit: rolling the ball with the sole of his foot to buy himself space and time. It is a press-resistant quality that allows him to control the tempo in a league — Ligue 1 — renowned for its physical intensity and pace.

His youth-team coach at Monaco, Manu dos Santos, views Bamba as equally capable as a No. 8 and a No. 6. Former Monaco assistant Damien Perrineau worked extensively with him on breaking defensive lines, a detail Lorincz remembers clearly: "There are not many players, especially in France, who have that ability to control the tempo the way he does."

Bamba himself is unconcerned by positional labels. "I can be in duels as well as play between the lines. It is not a problem for me," he has said.

Champions League experience and a relentless work ethic

By the spring, Bamba's development had accelerated sharply. He started Monaco's away Champions League knockout tie against Paris Saint-Germain, and then lined up the following week when Monaco travelled to the French capital and defeated the reigning European champions — a result that underlined just how far he had come in a matter of months.

He subsequently started four consecutive Ligue 1 matches, all of which Monaco won. As recently as May, his stated ambition was to become an "undisputed starter" at Monaco. Now, he arrives in the Premier League as a major signing.

Off the pitch, Lorincz speaks of a player with an exceptional mentality. "He was always the first one from the team to come in. When you have breakfast in the morning as a coach, he was already there. He adapted to whatever challenge came to him — man-marking, zonal defending, blocking, attacking the ball."

"Honestly, I had the feeling that he is one of those guys who is calm, silent in a good way. Not shy, but not drawing unnecessary attention to himself either."

Ready for the next step?

Lorincz is in no doubt that Bamba has the tools to succeed in England. "The Premier League is the highest level for a reason. But there are always players who, the higher they go, the more they adapt. He has definitely shown enough to suggest he has the capacity to make that next step."

He adds with a note of admiration: "Kudos to Newcastle for finding him."