A former NFL running back best known for his XFL nickname has been missing for nearly a week, South Carolina authorities said Tuesday.

Rod Smart, better known as “He Hate Me” from the XFL’s lone season, was last seen early Wednesday in Indian Land while driving a silver 2016 Nissan Maxima with North Carolina tags, according to the Lancaster County Sheriff’s Office.

“It is unusual for him to be out of touch for this long,” deputies wrote in a missing person advisory. “Mr. Smart’s family is worried about his safety and well-being.”

Smart, 42, whose real name is Torrold Smart, is 6 feet tall and weighs about 200 pounds, deputies said. Although he played in more than 50 NFL games, including four seasons with the Carolina Panthers, Smart is perhaps best known for his “He Hate Me” moniker on the back of his XFL jersey during the startup league’s only season in 2001.

Smart, a Florida native who played at Western Kentucky University, later told the Milwaukee Journal Sentinel about the origin of his unorthodox nickname, saying it was actually more about the players on the other side of the pigskin.

“Basically, my brother’s my opponent,” Smart told the newspaper. “After I win, he’s gonna hate me. It is what it is. It’s saying I was saying when I’d feel something wasn’t going my way.”

Anyone with information about Smart’s whereabouts is asked to call the Lancaster County Sheriff’s Office at (803) 283-3388.