How does Pep Guardiola’s 3-2-4-1 in possession beat Enzo Maresca’s 3-2-4-1 in possession when both managers are trying to own the same patches of grass? On 16 May at Wembley, kick-off 3pm BSTT1, TheFA.com, the FA Cup final will be decided in two strips of turf each about twelve metres wide, the half-spaces between centre-back and full-back, and the team that controls them for the longer share of the ninety will lift the trophy.

The two managers are studying each other’s homework. Maresca was Guardiola’s assistant at Manchester City in 2022/23, the season City won the treble. The base shape he brought to Stamford Bridge is a near-photocopy of the one he learned in Manchester. Both sides build with three at the back, a double pivot, a front five. Both invert at least one full-back into midfield. Both treat the half-space, that channel between the touchline and the central corridor, as the most valuable real estate on the pitch. Darren England has been appointed to refereeT1, TheFA.com. He will spend most of the match watching twenty-two players try to occupy the same eight squares.

The geometry of City’s build-up, in the Guardiola vintage of 2025/26, is well-defined. Rúben Dias and Manuel Akanji split as the wide centre-backs of a back three, Joško Gvardiol holds the central seat. Ahead of them, Rodri sits as the deepest pivot. Beside Rodri, the inverted full-back, currently Rico Lewis on the right and Nico O’Reilly on the left, depending on the week. The line ahead of the pivot is a four: Bernardo Silva and Phil Foden as the half-space tens, Jérémy Doku and Savinho holding the touchlines. Erling Haaland is the nine. The trigger zone is the pass from Dias to Bernardo’s feet, dropping into the right half-space at thirty-five metres from goal. When that pass goes in cleanly, City score, on average, in the next ninety seconds in roughly one match in three this season, by the StatsBomb sequence-xT model. When that pass is intercepted or forced backwards, City attack slowly, possession north of seventy per cent but with an xG per ninety closer to the league median.

Maresca’s Chelsea build with the same intent and slightly different pieces. Levi Colwill plays the left of a back three, Wesley Fofana the right, Tosin Adarabioyo or Axel Disasi the middle. Moisés Caicedo is the Rodri analogue, the single anchor. Either Malo Gusto or Reece James inverts into the second pivot seat (James, when fit, brings the more progressive passing range; Gusto brings the higher press resistance). Ahead of the pivot, the four is Cole Palmer right-half-space, Enzo Fernández left-half-space, Pedro Neto and Jadon Sancho holding width. Nicolas Jackson is the nine. Chelsea’s trigger is the mirror-image of City’s: the pass from Colwill into Palmer’s feet, dropping into the right half-space at thirty-five metres. On Athletic data published by Liam Tharme in March, that single pass-into-Palmer accounted for a higher share of Chelsea’s open-play xG than any other receiver-pass combination in the league.

So the final’s first chess problem is mutual: both teams want to put their best ten on the ball in the same channel. Both teams know it. Both teams, in their last meeting at the Etihad in February, which finished 2-2, spent ninety minutes trying to deny it.

The way Guardiola handled it in February was to ask Bernardo Silva to leave the right half-space and press Caicedo whenever Chelsea’s left centre-back received. The intent was to break the supply at source, force Colwill long, win the second ball with Rodri stepping up. It worked for forty minutes. Chelsea’s xG at the half-hour was 0.08. Then Maresca made a move that is worth re-watching now, because it is the move he will probably try first at Wembley. He swapped the inversion side. James, who had been playing as the right-sided second pivot, dropped wider. Gusto, who had been the wide right, came inside. The effect, geometrically, was that Bernardo’s press now found nobody to press; Caicedo had a passing partner one square to his left (Gusto), and the supply route from Colwill restored itself one passing lane further infield. Chelsea scored within seven minutes of the swap, Palmer cutting in from the right half-space to finish a sequence that started with Colwill to Gusto inside.

Guardiola will have studied that sequence. The likely counter, inferred from the way City have set up against three-at-the-back opponents in March and April, is to ask the inverted full-back on Bernardo’s side, Rico Lewis, to press Gusto’s inverted seat directly, with Bernardo dropping to mark Palmer at the receiving end. That is a man-orientation, not a zonal one, and it sacrifices City’s possession dominance for territorial denial. Guardiola has used the variant against Arsenal twice this season; both matches finished 1-1.

Which raises the second chess problem, and it belongs to Maresca. If City man-mark the half-space supply, where does Chelsea attack? The answer Maresca has used in the FA Cup run, including the semi-final against Leeds, is to push Sancho or Neto into the half-space himself, vacating the touchline, and then run a fullback (the non-inverted one, Marc Cucurella on the left when James inverts on the right) up the cleared flank as the late surge. The pattern produced both Chelsea goals against Leeds. It depends on the wide-three of City being dragged narrow, which Doku, in particular, is not always disciplined enough to resist.

The third problem belongs to both managers and is about restraint. The FA Cup final lands eight days before the Premier League’s final day on 24 MayT1, TheFA.com. City are contesting the league and the cup; Chelsea’s European qualification is still to be settled. Both managers have to decide how much of their best eleven to risk on a one-off match when their league hopes are alive. Guardiola’s history, on this question, is that he picks his strongest available eleven for cup finals and rotates around them in the league window. Maresca, in his first season, has not yet been tested this way. The team-sheet at 2pm on 16 May, names rather than shapes, may be the most informative tactical document of the day.

The unfixed problem, going in, is Rodri’s minutes. He returned in late March from the second of two long-term absences and has played sixty-plus minutes only twice since. If he starts at Wembley and lasts the ninety, City’s build-up has its keystone. If he is withdrawn at sixty, Mateo Kovačić or Nico González steps in, and the press-resistance of City’s deepest seat drops by a measurable margin (City’s PPDA-allowed rises from 9.4 with Rodri to 12.8 without, by FBref’s match-by-match data this season). Maresca’s most realistic plan B is to wait for that substitution and then turn the press up.

A final between two students of the same school. The cleverer student wins the half-spaces; the more disciplined student wins the cup. Eight days later, both are back at it for points.