Luck will leave his leadership role at the NCAA, where he oversaw the organization's regulatory functions, including eligibility requirements and academic affairs, and the eligibility center.
"Football has always been a constant in my life and I'm excited about the unique opportunity to present America's favorite sport to fans in a new way", Luck said. "The XFL will create first-class organizations that local cities across the country will be proud of".
The 58-year-old also has held notable positions with Major League Soccer and the Houston Sports Authority.
Oliver Luck, the former West Virginia athletic director and the father of Indianapolis Colts quarterback Andrew Luck, will be running the league.
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Luck earned his J.D. from the University of Texas at Austin School of Law, graduating cum laude in 1987. Eight teams will play a 10-game schedule, and a four-team playoff will determine the champion.
McMahon, the XFL's founder and chairman, confirmed Luck's hiring in a Tuesday, June 5 news release. There's a reported $100 million outlay by McMahon to start the XFL.
He noted games will be affordable for the entire family, and that just last week the league submitted their proposal to 30 markets across the US.
He will now relocate from Indianapolis to the XFL's headquarters in CT as he prepares for the league's launch in 2020.
McMahon, with Luck running the football side of things, will now try to capitalize on the NFL's increasingly battered image, at least in part by appealing to the portion of the pro-football fan base that thinks players should stand during the national anthem.