MGN Online

Published: Jun 21, 2013 11:28 PM EDT

ANNAPOLIS, Md. (AP) - The grandfather of a U.S. Naval Academy football player says his grandson is one of three midshipmen charged with sexually assaulting a female student last year.

Jackson Bush said Friday in a telephone interview with The Associated Press that Tra'ves Bush had a previous relationship with the woman but didn't have anything to do with the alleged assault.

Tra'ves Bush declined to comment to the AP.

Two people with direct knowledge of the case identified the other two midshipmen as Josh Tate and Eric Graham. They spoke on condition of anonymity because they believe it is the Naval Academy's place to give the names, which it hasn't done yet.

The Capital of Annapolis first reported the same names.

Academy spokesman John Schofield says the school won't make names public unless their cases proceed to a court-martial.

(Copyright 2013 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)