NEW YORK (AP) _ Michael Buffer, the boxing announcer known for the expression ``Let's get ready to rumble'' has been named in a lawsuit seeking to free the words for everybody else's use.

Infinity Broadcasting Corp. filed a federal lawsuit Friday seeking a court judgment that it hasn't infringed on the rights of Buffer and his company, Ready to Rumble Inc. of Delran, N.J.

Infinity said Buffer appeared on one of its radio stations, WFAN-AM, before a Las Vegas boxing match several years ago and recorded the phrase for the station's use.

The recording was played several times on Don Imus' show, prompting a letter last October from Buffer's brother and business manager, Bruce Buffer, rescinding the station's right to use the phrase, the lawsuit said.

Infinity said it filed the lawsuit after receiving a March 11 letter from Buffer's lawyer demanding $195,000 for copyright infringement and unfair competition.

There was no listing in the phone directory for Buffer or his company in Delran to be reached for comment.