The football library
A shirt-focused guide to period-specific badges, sleeve rules and name/number context. Check the edition before applying a “UCL version” claim.
21 May 2018 · 2017/18 reference
UEFA’s 21 May 2018 article places the European Cup-image badge on the left sleeve. It identifies eligibility as five titles or three consecutive wins, and records Barcelona receiving it in 2015.
↗2026/27
For 2026/27, the competition badge is required on the right sleeve from the play-offs. The reigning titleholder uses its titleholder badge instead. Neither may be used in another competition.
↗2026/27
The 2026/27 rules provide multiple-winner editions for three consecutive titles or at least five titles. An applicable UEFA campaign badge is also required on the right sleeve from the play-offs; this reference does not specify its artwork.
↗Equipment rules · effective 1 June 2026
Under equipment rules effective 1 June 2026, UEFA club-competition right-sleeve free zones are reserved for UEFA badges and left-sleeve zones for permitted sponsor or charity marks. Domestic sponsor use is relevant to Article 28 eligibility, not proof that every marking stays identical.
↗↗2010/11
Use the published FC Barcelona 2010/11 Home reference for that shirt’s verified identity. This page does not establish its domestic-vs-UCL patch, nameset or sponsor configuration, and does not apply 2026 rules retrospectively.
↗Effective 1 June 2026
Article 11, effective June 2026, places displayed player names above the back number, in a single colour using the Latin alphabet. The name must match the player list. No club-specific font or transfer-material specification is verified here.
↗Effective 1 June 2026
Article 10, effective June 2026, requires a centred back number using whole numbers no higher than 99; number 1 is reserved for a goalkeeper. This does not identify the printing system of a historical seller-listed shirt.
↗Effective 1 June 2026
Article 28, effective June 2026, permits up to two playing-attire sponsors: chest and left sleeve, subject to approval and advertising restrictions. A front sponsor must also be used in at least one official domestic competition. Check the applicable edition and actual club configuration.
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FJHImage unavailable2010/11
A published shirt reference for the season of Barcelona’s 2011 UEFA Champions League final. Read its own verified identity fields and limitations; no match-worn, patch or nameset certification is implied.
↗FC Barcelona 2010/11 Home →Check the exact season, club, competition stage and claimed match. Compare both sleeves, badge type, sponsor marks, name and number with dated evidence for that configuration. Request photographs of the actual item and product labels; a seller’s “UCL version” label is not verification.
Historical reference, not authentication of an individual item. Read the sources and ask the seller for item-specific evidence.
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Last verified: 2026-10-09