Britney Spears reportedly "doesn't want to see Sam Lufti again".

The songstress former manager has sued the pop princess and her parents for defamation and breach of contract.

Britney is currently busy with her role as judge on the US edition of singing competition The X Factor.

The star wants nothing to do with Sam's trial.

"Britney doesn't want to see Sam Lutfi or be in the same room with him again, ever," a source told Radar Online.

"Britney is terrified that she is going to be forced to testify in the trial, even though the judge handling her conservatorship ruled she isn't mentally competent to participate.

"Sam's lawyer is still pushing the issue with the judge handling the lawsuit though and said during a hearing this morning that he hadn't decided about whether or not he would call Spears as a witness. The Spears' family lawyers raised fierce objections and have vowed to wage a legal fight if Sam pushes the issue. Britney is terrified of Sam and has very bad memories about the time he was involved in her life."