Serena Williams earned a code violation and match penalty late Saturday night which put an end to her U.S. Open run.

In a match with Kim Clijsters, Williams was called for a foot fault violation by the line judge at 10:52 p.m. on her second serve to go match point down.

The cameras show that she shouted something at the official. What did Serena Williams say? One report indicates she said, “I would kill you.” Others are reporting that it was a curse.

As she had already received an earlier warning in the match for smashing a racket, Serena was handed an automatic point penalty for a second violation.

The decision was made to assess a code violation and a match penalty, giving Kim Clijsters a 6-4, 7-5 victory.

Watch the violation video below:

Watch Serena Williams news conference after the match:

Video