Roberto Mancini worked as an assistant manager under Sven-Göran Eriksson at Lazio during the late 1990s, where they won the UEFA Cup Winners' Cup and Serie A titles. Mancini later became a successful manager himself, winning multiple league titles. Jose Mourinho, Carlo Ancelotti, and Guus Hiddink are all accomplished managers but did not work under Eriksson at Lazio.