Justin Thomas apologizes for using ‘inexcusable’ anti-gay slur

The incident occurred after Thomas missed a par putt during the Sentry Tournament of Champions’ third round in Hawaii.

“There’s no excuse,” Thomas told the Golf Channel in an on-air apology immediately after his round at the Kapalua Plantation Golf Course.

“I’m an adult. I’m a grown man. There’s absolutely no reason for me to say anything like that.

“It’s terrible. I’m extremely embarrassed. It’s not the kind of person that I am … But unfortunately I did it and I have to own up to it and I’m very apologetic.

“I deeply apologize to everybody and anybody who I offended and I’ll be better because of it,” added Thomas.

Justin Thomas of the United States walks on the 10th hole during the third round of the Sentry Tournament f Champions at the Kapalua Plantation Course on Saturday.

A former world No. 1, Thomas is now third in golf's rankings.

READ: Justin Thomas praises Bryson DeChambeau’s remarkable transformation and success

“As he expressed after his round, we agree that Justin’s comment was unacceptable,” the PGA Tour said in a statement according to the AFP news agency, which added Thomas is likely to be fined for conduct “unbecoming of a professional.”

The PGA Tour and Thomas’ representatives did not immediately respond to CNN Sport’s request for comment.

Going into Sunday’s final round Thomas is tied for fifth place, four shots behind co-leaders Harris English and Ryan Palmer.