Kansas City, MO (My Sportsbook) - The hearing in Tom Gamboa's right ear has been impaired as a result of the attack by two men on the Kansas City Royals' coach at Comiskey Park last week.

Gamboa is expected to visit a hearing specialist, but hopes the condition is temporary. He first noticed the hearing loss several days ago. On Monday, Gamboa underwent an MRI on his sore neck.

Gamboa was attacked by two men, a bare-chested father and his son, as he was coaching on the field. Michael Tucker had popped out during a bunt attempt to pitcher Mike Porzio for the first out of the inning. As the pitcher caught the ball, the two fans came onto the field right behind Gamboa. One man, who had long hair and a few tattoos, threw a punch at the Kansas City first base coach while the other grabbed hold of Gamboa's leg. A folded-up pocket knife was found at the scene.

All of the Kansas City players then charged the field and piled on top of the two men, who were then taken away in handcuffs by police.

William Ligue Jr., 34, is being held on $200,000 bail. His 15-year-old son also faces a felony charge. If convicted, the father could be sentenced for up to five years in prison.