Arsenal and Paris Saint-Germain both spent last weekend celebrating their respective domestic titles, yet only one club will complete a remarkable 2025–26 season by lifting the Champions League trophy.
Defending champions PSG booked their place in Budapest following a breathtaking semifinal clash with Bayern Munich. The two continental giants combined for 11 goals over two legs, with Ousmane Dembélé's strike in the third minute at the Allianz Arena proving decisive as PSG edged through 6–5 on aggregate, eliminating Vincent Kompany's side.
A far more tactically disciplined affair played out between Arsenal and Atlético Madrid. Following a 1–1 stalemate in the first leg in Spain, Bukayo Saka netted the sole goal in the return fixture to propel the Gunners into just the second Champions League final in their history.
It's a classic footballing matchup. Arguably Europe's most potent attacking side against arguably Europe's most resolute defensive unit. So who prevails? Here's how the Opta supercomputer assesses each finalist's probability of lifting the Champions League trophy.
Supercomputer Predicts 2025–26 Champions League Winner

Team | Chance of Winning |
|---|---|
PSG | 55.78% |
Arsenal | 44.22% |
For virtually the entire 2025–26 season, Opta had Arsenal pegged as Champions League favorites. Even following both semifinal second legs, the Gunners retained top billing in the supercomputer's projections.
However, Opta has now shifted its backing to PSG. The reigning champions are given a 55.78% probability of retaining the title — a back-to-back achievement only Real Madrid have managed in the Champions League era.
The supercomputer may simply be unable to overlook the devastating attacking quality that has carried the Parisians to a second straight Champions League final. The club has scored 44 goals on Europe's biggest stage this season, the highest tally ever recorded in a single campaign throughout the competition's history.
Dembélé's latest injury update may also have contributed to the shifting odds. The French forward confirmed he experienced only "slight discomfort" and assured he will "be back on the pitch on May 30."
Coupled with the club's outstanding midfield engine, spearheaded by Vitinha, and a dependable defensive unit, PSG look well-equipped to successfully retain their European crown.

Despite no longer being Opta's top pick, Arsenal still carry a formidable 44.22% chance of claiming their maiden Champions League crown. It's fair to say the Gunners would gladly accept those odds given the caliber of their opposition.
The north London club will also arrive brimming with belief. Mikel Arteta's squad is still riding high after securing their first Premier League title in 22 years — a triumph that appeared to be unraveling in April when they surrendered a nine-point advantage within just 11 days.
Yet Arsenal showed tremendous resilience, rediscovered their form, and sealed the domestic title with that long-awaited piece of silverware. Throughout their European journey, they remained unbeaten in the competition, largely due to their outstanding defensive structure and the exceptional performances of David Raya in goal.
William Saliba, Gabriel and their defensive colleagues will need to produce a near-flawless display to contain PSG's attacking threat on May 30, but with a historic Champions League title within reach, every player in red will give everything they have in pursuit of toppling the reigning champions.
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