The man who attacked Kansas City Royals' first base coach Tom Gamboa during a game last month is sorry for his actions.

William Ligue Jr. called a newspaper from the Chicago-area jail where he is being held to say he regretted what happened on Sept 19.

Last month, Ligue and his son came onto the field at Comiskey Park and attacked Gamboa during the ninth inning of a game between the White Sox and Royals.

Ligue claimed the attack Gamboa was retaliation for an obscene gesture. The coach denied provoking Ligue and his son. Prosecutors contend the attack was pre-meditated

According to prosecutors, the 34-year-old called his sister, Kimberly Richardson, and told her to watch the game because he would be on television.

Authorities allege Ligue told his sister if she couldn't find the game on TV that she should watch the news because he would be on it too.

Ligue told the Daily Southtown he doesn't remember much from that night.

"If I was in my right state of mind, this would never have occurred," he said. "I am so sorry for Mr. Gamboa. I disgraced Chicago and myself. I apologize with my heart."

Ligue also said he needed help with a drug habit.

"I have a terrible drug problem I cannot control," Ligue said. "I need help."

Ligue's daughter died in May. According to Richardson, Ligue went into a tailspin after that.

A grand jury indicted Ligue on three counts of aggravated battery and one count of mob action. He is being held on $200,000 US bail and is scheduled to be in court Friday for an arraignment.

Ligue's 15-year-old son pleaded guilty to one charge of aggravated battery, two counts of mob action for striking Gamboa and for hitting an off-duty state trooper acting as a security guard.

He was released from a juvenile temporary detention centre. He will be confined to his home.

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

with files from Canadian Press