CACrown ArchivesThe cinema collection
Menu
Research dossier · People & Ideas

Santiago Sosa

Argentine footballer (born 1999)

Correspondence, annotated notebooks and portrait silhouettes prepared for research
People and ideasInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 21, 2026
Entity authorityQ56378908 ↗
Source-derived summary

Santiago Leonel Sosa (born 3 May 1999) is an Argentine professional footballer who plays as a defensive midfielder for Campeonato Brasileiro Série A club Vasco da Gama.

Club career

Sosa's career began with Mercedes, before River Plate signed him in 2018. The 2018–19 campaign saw Sosa become a senior member of the club's first-team, he made his professional career debut in a 2018 Copa Libertadores fixture with Racing Club on 29 August 2018; he featured for the remaining sixteen minutes as River Plate won 3–0. He ended the aforementioned season with five total appearances.

In February 2021, Sosa signed with Major League Soccer club Atlanta United. On 6 April 2021, Sosa made his club debut in their 1–0 victory over Alajuelense in the CONCACAF Champions League. He then scored his first goal for Atlanta United on 4 May 2021 against the Philadelphia Union in the Champions League, the match ending in a 1–1 draw.

In August 2026, Sosa joined in the Brazilian club Vasco da Gama, until December 2029.

International career

Born and raised in Argentina, Sosa is of Croatian descent and holds dual citizenship. Whilst with River Plate, represented the Argentina U20 team; including in training sessions with the seniors.

Editorial summary

Begin with the source’s own compact description: “Santiago Sosa” is argentine footballer (born 1999). The dossier treats that line as a proposition to test through Santiago, Sosa and Argentine, not as a finished interpretation.

Editorial reviewStrongest as a route into the people, institutions and dated events that shaped the subject’s public record. The current lead gives the account dated anchors—1999, 2018, 2021, 2026—that can be checked directly. The linked authority record independently contributes the date 1999-05-03. For this dossier, Santiago, Sosa and Argentine is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “argentine footballer (born 1999)” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Chronology provides the most reliable spine for this subject; interpretation should follow only after identities and dates are secure. The source revision retrieved here is dated Sep 21, 2026. The linked authority identifier is Q56378908. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1999, 2018, 2021 and 2026.

Critical limits

Public reputation and documentary evidence do not always develop together; absence from a summary is not evidence of historical absence. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Read biographical claims against dates, named institutions and the cited references. Distinguish a subject’s later reputation from evidence produced during their lifetime.

Best used for
  • Establishing names and roles
  • Building a first chronology
  • Locating cited institutions
Verify next

Personal papers, civil or court records, institutional files and the scholarship cited by the source.

Three-step research path

  1. Establish the record: confirm the title “Santiago Sosa”, its source revision and the description used here.
  2. Expand the search: follow Santiago Sosa primary sources, Santiago Sosa archive and Santiago research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Santiago Sosa”?
  2. Which primary records establish identity, chronology and institutional ties?
  3. How has the subject’s reputation changed across later accounts?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Santiago Sosa” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.