Mariotti was known for being a columnist for 17 years at the Chicago Sun-Times and for being a regular panelist on the ESPN sports talk television series Around the Horn for eight years. He started his career at The Detroit News and then became of the youngest sports columnists in the country at The Cincinnati Post. He moved to work for The Rocky Mountain News and The Denver Post and then at The National Sports Day in New York. He was arrested in 2010 for felony charges related to an incident with his ex-girlfriend and was sentenced to five years' probation. For his legal issues Mariotti was released from ESPN. He launched the internet print and broadcast venture The Mariotti Show on MariottiShow.com in 2013.
