# Real Sociedad vs Atletico Madrid - verified English source brief
Write an evidence led Xtra Stats match preview in English for the upcoming La Liga fixture. Use only the facts below. The article must be analytical and conditional, with no betting language, predicted score, invented line-up, causal claim or player ranking.
## Fixture
Real Sociedad host Atletico Madrid on 13 September 2026 at 21:00 Madrid time (19:00 UTC) at Estadio de Anoeta. The fixture is scheduled, status not started. Official LaLiga and Atletico schedule sources govern the kickoff and venue.
## Form window and method
Use the latest completed La Liga 2026/27 fixtures before 4 September 2026, status FT/AET/PEN, with four matches for Real Sociedad and three for Atletico Madrid. The windows are unequal and small, so comparisons are descriptive and do not establish a strength model. Opponent rank values are snapshots from the source at each match and are context only.
Real Sociedad: 1 win, 1 draw and 2 losses, 3 goals for and 6 against across four matches. Results: 0-1 at Real Betis on 21 August, 1-4 at Real Madrid on 26 August, 2-1 at home to Espanyol on 29 August and 0-0 at home to Celta Vigo on 3 September. The home split is 1 win, 1 draw and 0 losses, 2 goals for and 1 against. The live standing snapshot still lists only three matches and three points; the official 3 September 0-0 result means that row is stale. Do not present the stale rank/points as a current complete table.
Atletico Madrid: 2 wins, 1 draw and 0 losses, 7 goals for and 3 against across three matches. Results: 2-0 at home to Malaga on 19 August, 2-2 at home to Villarreal on 23 August and 3-1 at Sevilla on 29 August.
## Collective metrics
Across the four audited Real Sociedad matches, the averages are 15.5 shots, 5.25 shots on target, 50.75% possession, 7.5 corners and 85.67% pass completion where recorded. Across Atletico’s three matches, the averages are 15.33 shots, 5.0 shots on target, 54.33% possession, 4.33 corners and 87.33% pass completion. xG is absent in all seven rows: missing is not zero, and no xG comparison may be made. One Real Sociedad pass field is missing; retain the stated denominator and caveat. Present all averages as small-sample observations. Atletico’s stronger early record and Real Sociedad’s home split do not prove a stable or causal advantage.
## Schedule and head to head
Before the target, the database lists Elche vs Real Sociedad on 7 September, Athletic Club vs Atletico Madrid on 5 September and Liverpool vs Atletico Madrid in the Champions League on 9 September. Official Atletico and LaLiga schedules confirm the latter sequence. This is calendar context, not proof of fatigue; refresh the intervening results before publication.
The five latest completed Real Sociedad-Atletico meetings from July 2023 through the cutoff are 0 wins, 2 draws and 3 losses from Real Sociedad’s view, with 4 goals for and 11 against. The canonical historical record is oriented Atletico Madrid vs Real Sociedad. Use it only as historical context; current venue split, form and current squad evidence take priority.
## Squad changes and availability
The audited movement extract lists M. Sarr (loan from Chelsea) and Hector Fort (transfer from Barcelona) as Real Sociedad arrivals, and Brais Mendez’s transfer to Columbus Crew and Javi Lopez’s loan to Feyenoord as departures. Sarr and Fort were named on the bench in the official Real Sociedad-Celta 0-0 lineup; this is one lineup observation and gives no minutes claim.
The Atletico ledger lists Cristian Romero, Lee Kang-In and M. Hjulmand as arrivals. Lee’s arrival is official; Hjulmand is a dated database transfer row. The official club category lists Thomas Lemar’s loan to Elche and a 1 September Jonathan David loan/registration update, while the selected transfer extract has no matching David row. In the small player aggregate, Lee has 170 observed minutes and Hjulmand 184 across three league matches. These are integration observations only and do not establish quality, availability or impact.
The available injury/suspension table is stale: it has no starts after the audit cutoff and cannot support current availability. Do not name a current injury, suspension or starting XI. State that official club or competition updates are required at J-2/J-1.
## Editorial shape and sources
Use five to seven descriptive H2 sections, including method/coverage, limitations and a five-question FAQ. Include a compact comparison table and explain correlation versus causation. Use each verified internal Xtra Stats entity URL at most once when supplied by the workflow. Do not mention databases, SQL, table names, internal IDs, prompts, models, briefs or workflow.
Official sources: [LaLiga Jornada 5 schedule](https://www.laliga.com/laliga-easports/resultados/2026-27/jornada-5); [Atletico first-team calendar](https://www.atleticodemadrid.com/clasificacion-primer-equipo/); [Real Sociedad next matches](https://www.laliga.com/en-GB/clubs/real-sociedad/next-matches); [Real Sociedad 0-0 Celta report](https://www.laliga.com/en-US/match/temporada-2026-2027-laliga-ea-sports-real-sociedad-rc-celta-6); [Atletico first-team news](https://www.atleticodemadrid.com/noticias/categoria/primer-equipo); [Lee Kang-In signing](https://www.atleticodemadrid.com/noticias/kang-in-lee-signs-with-atletico-de-madrid); [Atletico press area](https://www.atleticodemadrid.com/atm/area-de-prensa).
The cutoff for all facts above is 4 September 2026. Refresh official schedule, venue, availability and intervening results before publication.