<p>CHICAGO, Illinois (AP) -- A 15-year-old boy accused of attacking a Kansas City Royals coach during a baseball game pleaded guilty and was released to his family until sentencing.</p>
<p>The boy and his father, 34-year-old William R. Ligue Jr., were charged in the September beating of coach Tom Gamboa during a game between the Royals and Chicago White Sox. Gamboa lost some of his hearing.</p>