Answer
At just 28 years of age, Luke Kuechly made the surprising decision to retire from the NFL. Despite his relatively young age, Kuechly had already established himself as one of the league's top linebackers, earning All-Pro honors five times and helping lead the Carolina Panthers to the Super Bowl in 2015. However, persistent concussion issues ultimately forced him to prioritize his long-term health and well-being, leading to his premature retirement.