Official AS Roma Fourth jersey from the 2003/2004 season, produced by technical sponsor Diadora. The jersey is dark blue with yellow and red accents, reflecting the club's traditional colors. The Roma crest, featuring the iconic Capitoline wolf, is displayed on the chest, with the Mazda commercial sponsor logo in the center. The Diadora logo is placed above the crest, and the sleeves feature orange details, a signature of Diadora's design during that era.

In the 2003/2004 season, Roma, led by Fabio Capello, finished second in Serie A, just behind Milan. Francesco Totti, the club's captain and symbol, was a standout performer, contributing goals and assists to Roma's successful campaign.