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Oksana Grigorieva was in good spirits this morning as she sent her young daughter Lucia off to daycare. Her ex Mel Gibson is expected at the Airport Courthouse in Los Angeles at 1:30 pm to face misdemeanor battery charges.

Just this morning, the L.A. County District Attorney officially filed a single misdemeanor battery charge against the actor.

The charge stems from Grigorieva's accusations that Gibson allegedly threatened her with a gun and punched her at his Malibu home.

Oksana will not be charged with extortion which stemmed from a multi-million dollar deal she signed with Mel back in May 2010 during their child custody case. She eventually rejected the deal.

Grigorieva is not expected to attend today's court hearing.

Oksana stepped out with Lucia yesterday. See the adorable tot ... after the jump.