K-Fed Battles Britney for Custody

Kevin Federline has responded to his estranged wife's divorce petition.

Federline is asking for legal and physical custody of the couple's children. Sources tell TMZ that Federline will fight Spears on the custody issue. In the response, obtained by TMZ, Federline is asking the judge to award Spears visitation.

Federline is also asking the court to award him spousal support.

Federline's lawyer, Mark Kaplan, filed the response Wednesday in Los Angeles County Superior Court.

In her petition, Spears asked for sole physical and legal custody of the kids.