Brandel Chamblee has apologised to Tiger Woods for insinuating that the world number one cheated during various rules incidents this year.
In a column Chamblee wrote for Golf.com, he gave Woods an "F" for his five-win season, comparing cheating in a school test with a number of rules violations committed by Woods.
"What brought me here was the realisation that my comments inflamed an audience on two sides of an issue," former Tour professional and Golf Channel analyst Chamblee wrote on Twitter.
"Golf is a gentleman's game and I'm not proud of this debate. I want to apologise to Tiger for this incited discourse.
"My intention was to note Tiger's rules infractions this year, but comparing that to cheating in grade school went too far."
In the column, Chamblee said Woods "was a little cavalier with the rules," citing four rules incidents Woods was involved in.
Chamblee also wrote of an incident in which he cheated in a school test.
"When I was in the fourth grade, I cheated on a math test and when I got the paper back it had '100' written at the top and just below the grade, was this quote, "Oh, what a tangled web we weave when first we practice to deceive!"
Chamblee wrote. "It was an oft-quoted line from the epic poem "Marmion" by Sir Walter Scott, and my teacher's message was clear. Written once more beneath that quote was my grade of '100', but this time with a line drawn through it and beneath that an F.
"I never did ask my teacher how she knew I cheated and I certainly didn't protest the grade. I knew I had done the wrong thing and my teacher the right, but I never forgot the way I felt when I read that quote.
"I remember when we only talked about Tiger's golf. I miss those days. He won five times and contended in majors and won the Vardon Trophy and... how shall we say this... was a little cavalier with the rules."
Chamblee then gave Woods a '100' but wrote a line through it and followed it with an 'F.'
Woods' agent, Mark Steinberg, told ESPN.com last week that he would "have to give some thought to legal action."