 In August 2003, he left for another Serie A side Lecce, where he partnered with the rising star Cesare Bovo, which also one of the few youth players sold by Roma in 2002 and not a flop.Both players was spotted and shined again, which Siviglia joined Lazio on loan.Although aged 31, Siviglia started to play as a regular for a big club, as Lazio only had Fernando Couto, Paolo Negro and Massimo Oddo remained and Jaap Stam, Siniša Mihajlović and Giuseppe Favalli had left the club.