approved on 24 February after final review of the stadium's design adjustments. In August 2017, the stadium suffered another delay, forcing Roma to renew their lease with the Stadio Olimpico until 2020. It is presently uncertain when the stadium will open. On 5 December 2017 the Stadio della Roma project, after experiencing five years worth of delays due to conflicting interests from various parties in the Roman city government, was given the go-ahead to begin construction, with the stadium expected to be ready to open for the 2020–21 season. On 26 February 2021, it was announced that the stadium project was halted. List of stadiums used by the club 1927–1928 Motovelodromo Appio 1929–1940 Campo Testaccio 1940–1953 Stadio Nazionale del PNF 1953– Stadio Olimpico (1989–1990 Stadio Flaminio due to renovations on Olimpico) Trigoria A sports centre located in Trigoria at kilometre 3600 in south-east of Rome was purchased on 22 July 1977 by then club president Gaetano Anzalone. It was opened on 23 July 1979 as Anzalone's final act as president. The complex had its first expansion in 1984 when the club was handled by Dino Viola and another in 1998 under the chairmanship of Franco Sensi. The centre's official name is the Fulvio Bernardini di Trigoria, named after club icon Fulvio Bernardini. On 4 September 2019, the Trigoria training ground began to serve also as a private school named 'Liceo Scientifico Sportivo A.S. Roma' exclusively educating only the team's youth players in a renovated building on the training ground premises. 80 students are currently enrolled in the school which features its own cafeteria and gym. The centre is also known for hosting the Argentina national team during the 1990 FIFA World Cup, held in Italy. Supporters Roma is the fifth-most supported football club in Italy – behind Juventus, Internazionale, A.C. Milan and Napoli – with approximately 7% of Italian football fans supporting the club, according to the Doxa Institute-L'Espresso's research of April 2006. Historically, the largest section of Roma supporters in the city of Rome have come from the inner-city, especially Testaccio. The traditional ultras group of the club was Commando Ultrà Curva Sud commonly abbreviated as CUCS. This group was founded by the merger of many smaller groups and was considered one of the most historic in the history of European football. However, by the mid-1990s, CUCS had been usurped by rival factions and ultimately broke up. Since that