The Big 12 will partner with the NFL for a Big 12 Pro Day next year at The Star in Frisco.
The Big 12 says the first conference-wide pro day is "replacing and advancing traditional on-campus pro days."
NFL Network will cover it live. https://big12sports.com/news/2023/3/14/mens-basketball-big-12-and-nfl-partner-to-launch-big-12-pro-day-in-2024.aspx