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Paolo Lazzeroni, Associated Press
Siena's Emanuele Calaio', left, challenges for the ball with Lazio's Lionel Scaloni, center, of Argentina, and Senad Lulic, of Bosnia, during an Italian Serie A soccer match between Siena and Lazio, in Siena, Italy, Saturday, Jan. 7, 2012.

MILAN — Struggling Siena made a perfect start to 2012 by winning 4-0 against 10-man Lazio in Serie A on Saturday.

Mattia Destro fired Siena into the lead in the 11th minute before Emanuele Calaio struck twice from the spot. The second penalty in first-half stoppage time also resulted in the dismissal of Lazio goalkeeper Albano Bizzarri.

Destro doubled his tally 10 minutes from time with a powerful header.

Lazio, which started the year in fourth place in Serie A, was never really in the game and shut up shop in the second half in a bid to keep the score down.

It is Siena's first victory since October — a run of seven matches — and lifts the team to 14th ahead of the rest of the weekend's games.