Derby), the match between Lazio and their main rivals, Roma. It is amongst the most heated and emotional footballing rivalries in the world, such as where Lazio fan Vincenzo Paparelli was killed at one of the derby games during the 1979–80 season after being hit in the eye by an emergency rocket thrown by a Roma fan. A minority of Lazio's ultras used to use swastikas and fascist symbols on their banners, and they have displayed racist behaviour in several occasions during the derbies. Most notably, at a derby of the season 1998–99, laziali unfurled a 50-metre banner around the Curva Nord that read, "Auschwitz is your town, the ovens are your houses". Black players of Roma have often been receivers of racist and offensive behaviour. After 33 years, the Irriducibili disbanded on 27 February 2020, citing "too much blood, too many banning orders, too many arrests." Lazio's ultras now go by the name Ultras Lazio. Lazio also have a strong rivalry with Napoli and Livorno, as well as with Pescara and Atalanta. The club also maintains strong competitive rivalries with Fiorentina, Juventus, and Milan. Conversely, the ultras have friendly relationships with Internazionale, Triestina, and Hellas Verona. Internationally, Lazio's fans maintain a long-standing strong friendship with the supporters of the Bulgarian club Levski Sofia and as such, Lazio were invited to participate in the centenary football match honouring the birthday of the Bulgarian club. Players Current squad Out on loan . Youth sector Retired numbers 12 – Since the 2003–04 season, the Curva Nord of Stadio Olimpico, as a sign of recognition, is considered the 12th man on the pitch. Notable managers The following managers have all won at least one trophy when in charge of Lazio: Honours National Serie A Winners (2): 1973–74, 1999–2000 Coppa Italia Winners (7): 1958, 1997–98, 1999–2000, 2003–04, 2008–09, 2012–13, 2018–19 Supercoppa Italiana Winners (5): 1998, 2000, 2009, 2017, 2019 Serie B Winners (1): 1968–69 European UEFA Cup Winners' Cup Winners (1): 1998–99 UEFA Super Cup Winners (1): 1999 Statistics and records Ștefan Radu holds Lazio's official appearance record, having played 416 appearances. The record for total appearances by a goalkeeper is held by Luca Marchegiani, with 339 appearances, while the record for most league appearances is held by Aldo Puccinelli with 339. The all-time leading goalscorer for Lazio is Ciro Immobile, with 170 goals scored, followed by Silvio Piola with 159 goals. Piola, who