Former Illinois defensive end Bobby Roundtree, who was paralyzed in a 2019 swimming accident, died unexpectedly Friday at age 23.The school confirmed his passing a news release.”All of us with Illinois Athletics are shocked and saddened by the sudden passing of Bobby Roundtree,” athletic director Josh Whitman said. “From his first day on campus, Bobby was a leader. His work ethic, competitive fire, and drive for excellence set him apart. Following his tragic accident, those same qualities allowed him to tackle his new challenges with the same vigor and determination that we had seen on the football field. In so doing, he continued to bring light and inspiration to the lives of those around him — and, in fact, to so many people who had never had the pleasure of meeting him.”Roundtree suffered a severe spinal cord injury in the accident when he went home to Florida for a visit in May 2019. He had been rehabilitating in the Tampa area, where he died.The school did not reveal a cause of death.He frequently posted videos to Twitter highlighting the progress in his rehabilitation sessions, with the most recent coming Monday.