Nike have revealed the FC Barcelona Mashup shirt. It is officially dubbed the Nike FC Barcelona "What The" 20th Anniversary Jersey. 

The Nike FC Barcelona Mashup jersey will be not worn in an official match. The limited-edition Barca 'mashup' jersey is similar to what the brand did for Arsenal before the Gunners left for Puma.

The Swoosh has taken pride of place on those red and blue stripes since 1998, a 20-year period that has been a golden era of success for the club — 10 Spanish league titles, four Champions League titles and a host of other silverware. To mark the relationship's 20th anniversary, Nike is releasing a commemorative jersey with a timeline twist

Nine panels each on the front and back of the Barcelona 2018 Mashup shirt showcase the stripe designs of all Barcelona home shirts worn between 1998-99 and 2017-18. On the front, we can see the iconic collar of the 2014-15 shirt, with the 2008-09 halves just below it, containing the club crest. Then there's 2009-10, 2015-16, 2017-18, whilst on the back we can see 1998-00, 2012-13 and 2016-17 amongst others. The right sleeve of the Barcelona 20 Years Mashup jersey is dedicated to the 2013-14 home shirt. The swoosh and club crest sit inside the 2008-09 halves on the chest of the Nike FC Barcelona Mashup kit, with no sponsor logos present either on front or sleeves.

“This idea really came out of the blue," says Pete Hoppins, Nike Football Apparel Senior Design Director. "We wanted to do something different to celebrate the 20th anniversary. The main challenge was ensuring all the previous shirts were represented, but also that each one was carefully placed. We had to be mindful of the overall design, rather than just placing each one anywhere on the garment."