Substitute Christian Brocchi scored the only goal of the game as Lazio beat FC Zurich tonight to record their first win in Group D of the Europa League.
Brocchi came on in the second half tonight and struck the winner in the 62nd minute to bring the Stadio Olimpico to life.
The result has left Zurich without a victory after four games and lifted the Italians to second in the group.
The Roman club is level on five points with Valsui, who beat group leaders Sporting Lisbon 1-0 in the pool's other game.
Lazio, held to a 1-1 draw at Zurich two weeks ago, struggled to break the Swiss outfit's well-placed defence in the opening half.
Lazio coach Edy Reja opted to play with Tommaso Rocchi alongside the team's top scorer Miroslav Klose in attack.
Rocchi went into the game after scoring his 100th goal for the club in their 3-0 triumph at Cagliari at the weekend.
The visitors had the first chance in the opening minute.
Lazio goalkeeper Federico Marchetti had to fully stretch to clear Alexandre Alphonse's stinging drive from outside the area.
Lazio replied with Giuseppe Sculli getting his head on Luciano Zauri's cross only for his effort to go over the bar.
Shortly after, Lorik Kana hit the ball straight into the hands of Zurich goalkeeper Johnny Leoni.
Lazio continued to press forward but could not break through and were limited to outside shooting.
On the half-hour mark, Senad Lulic's bullet strike from 30 yards was kept out Leoni.
Before the break, Ricardo Rodriguez made a crucial tackle on Klose, who had got past three defenders and was surging towards Leoni.
Reja made a double substitution after the re-start with Djibril Cisse and Brocchi replacing Klose and Lulic.
The hosts continued to dominate possession but nearly fell behind in the 50th minute as Marchetti was forced to come off his line to clear a dangerous ball directed at Alphonse.
Lazio's efforts finally paid off shortly after the hour mark.
Brocchi got past his marker and struck a right-footed shot from 20 yards that beat Leoni.
In the 73rd minute, Marchetti did well to block substitute Amine Chermiti's goalbound attempt from 12 yards.
With 10 minutes remaining, Rocchi tried to double the advantage but his volley went over the bar.
Zurich surged for a late equaliser but Lazio held on for victory.