Phil Mickelson has announced that he won't be attending the Rocket Mortgage Classic Detroit again following a newspaper report detailing an alleged fraud involving Mickelson. (1:51).Phil Mickelson, the Rocket Mortgage Classic's first-ever participant in its three-year history in Detroit, said that it would be his last appearance.Mickelson stated that he will not return to the United States because of a story by The Detroit News published this week. The Detroit News obtained federal court records dating back to 2007 detailing how Mickelson was allegedly cheated out of $500,000.Mickelson stated, "It was so difficult for me to come here and to receive that type of unneeded attack." It's not like I care. It happened 20-something year ago. It's just lack of appreciation. Yes, that's what I see. I don't think I will be returning. While I love the people of this place, they are great. But, not with such things happening.Mickelson's remarks came one day after Glenn Cohen, Mickelson's attorney, said to ESPN's Bob Harig that he had issues with the newspaper report.Cohen stated to ESPN that he was disappointed that they chose this week to write about a bet made more than 20 years ago, a jury trial that took places in 2007, and where Phil Mickelson was convicted.Mickelson, 51, shot a 69 Thursday. This marked the sixth consecutive round of play that he was under par from the 11 rounds since May when he became the oldest major winner of the PGA Championship.This report used information from The Associated Press.