
De Zerbi's Quiet Revolution at Marseille — And Why It Matters
Roberto De Zerbi is reshaping Marseille with bold, progressive tactics. A deep dive into his formation, pressing, and the key roles driving his system.
Back three football. That's the answer.

Back three football uses three central defenders instead of the traditional back four. The full-back roles are replaced by wing-backs, who operate as hybrid defenders and wingers.
This formation allows teams to control wide areas in attack while maintaining compactness centrally. In possession, it creates overloads. Out of possession, it offers better cover against counter-attacks.
The roots of back three football trace back to the 1980s with managers like Valerio Bacigalupi at Juventus. But it was Antonio Conte who revived it in the modern era, winning titles with Inter, Juventus and Chelsea using a disciplined 3-5-2.
A key moment came in Euro 2016 when Italy defeated Belgium 2-0 using this system — a masterclass in midfield control and defensive organisation.
Ruben Amorim at Manchester United is a leading exponent of back three football in 2026. His 3-4-3 setup features aggressive wing-backs and a deep-lying playmaker shielding the back line.
United are reportedly in excellent form under this system, with their wide players contributing heavily in attack. The formation enables fluid transitions and sustained pressure.
"The back three football isn’t about hiding — it’s about controlling space and tempo" — tactical analyst, The Athletic
The key is targeting the space between the wing-back and the central defender. Quick forwards like Victor Osimhen or Arda Güler can exploit these gaps.
Teams can also overload the flanks or press high to force mistakes. Spain did this effectively against Italy in 2023, using rapid rotations and positional interchange.
Back three football fits perfectly with today’s emphasis on intensity, width and verticality. It balances defensive solidity with attacking potency.
More managers are adopting it, and academies are now developing more versatile centre-backs. It’s not just a trend — it’s redefining positional roles.