Lazio head coach Simone Inzaghi has preached caution ahead of his side's Europa League quarter-final second leg against Red Bull Salzburg next Thursday.
The Italians take a two-goal cushion with them to Austria after a pulsating 4-2 win at the Stadio Olimpico thanks to goals from Senad Lulic, Marco Parolo, Felipe Anderson and Ciro Immobile.
A controversial penalty from Valon Berisha had cancelled out Lulic's opener, while substitute Takumi Minamino had looked to have secured a draw with 19 minutes remaining.
Felipe Anderson and Immobile scored in quick succession to give Lazio a healthy lead, but Inzaghi has seen enough from the Austrian league leaders to know the return leg will not be a procession.