DALLAS (June 19, 2009)--Dallas Mavericks star Dirk Nowitzki has filed court papers seeking sole custody of his former girlfriend's unborn child, if genetic testing proves he's the father.

The June 12 petition was first obtained by the Beaumont Enterprise, and court officials have since sealed it.

Crystal Taylor, arrested May 6 at Nowitzki's Dallas home, has repeatedly said Nowitzki is the father.

Neither is specifically named in the document, but the petitioner is identified as "D.N." and the respondent as "C.T." Her attorney told the Beaumont newspaper that she knew the documents had been filed but didn't comment on them.

Taylor is an inmate in the Jefferson County jail in Beaumont.

She is accused of paying for almost $11,000 in dental work with a credit card she didn't have permission to use.