Chicago, IL (My Sportsbook) - The 15-year-old boy charged with attacking Kansas City Royals' first base coach Tom Gamboa pleaded guilty on Tuesday, and was released from the Juvenile Temporary Detention Center for home confinement.

The teenager pleaded guilty to one charge of aggravated battery, and on two counts of mob action for striking Gamboa, and also for hitting an off-duty state trooper acting as a security guard.

He will be sentenced November 7 and might face probation or incarceration until he turns 21.

The boy's father, William Ligue Jr., had a hearing on Saturday, and a prosecutor described how the 34-year old called his sister before Thursday night's game and said for her to watch the contest between the White Sox and Royals because he would be on television. Assistant State Attorney Colleen Daly then described how Ligue told his sister even though she couldn't find the game on TV, she should watch the news because he would be on it, as well.

Daly said Ligue told police after his arrest that he went onto the field because he was angry that the White Sox were losing. A pocket knife was found at the scene and Daly said Ligue was wearing it around his waistband when he ran onto the field.

This was not the first time Ligue has been in trouble with the law. He was convicted of burglary in 1986 and served five months in prison. He was then charged with domestic battery in 1996 and spent seven days in jail.

Ligue remains at the Cook County Jail where he is being held on $200,000 bond and has a hearing set for November 1.