Player: Óscar Tabuenca

Nationality: Spain

Club: Athletic Bilbao

Notes:

• There are no widely available records of a professional player named "Óscar Tabuenca" who played for Athletic Bilbao in major competitions (La Liga, Copa del Rey, UEFA competitions) up to my last update.
• Possible explanations:
  • The name may be misspelled or incomplete. Similar Spanish Basque names or nicknames could lead to different spellings.
  • The player may have been part of youth, reserve (Bilbao Athletic or Basconia) or amateur squads rather than the first team, whose records are less widely published.
  • The player may be a very recent signing or lower-league player not included in major databases available at the time of my last update.
• If you need precise details (dates, position, appearances, stats), I can search known databases and historical squads if you provide alternate spellings, a birth year, position, or the time period when he was active.

Suggested next steps:

• Provide any alternate spellings or additional info (birth year, position, era).
• I can check commonly used sources (club squad lists, Transfermarkt, BDFutbol) for matches to the name you gave and report findings.