The University at Buffalo is grieving the loss of the football team’s defensive end, Solomon Jackson, just over a week after he collapsed. He was 20 years old.

The university announced the sad news on March 1 via its website.

"It is with deep sadness that I write to share that we have lost one of our own, UB football player Solomon Jackson, who passed away last night," UB Athletics Director C. Allen Greene said in a statement. "Our heartfelt condolences and deepest sympathies go out to Solomon's family as together we mourn his tragic and untimely death.

“From the outpouring of prayers and support over the past week since Solomon was hospitalized, it has been abundantly clear just how many lives he touched on a daily basis through his contributions and character—as an athlete, as a student, as a friend and mentor to others, and as an active and engaged member of our campus community."

Last week, the school’s student-run newspaper, the Spectrum, reported that the athlete, known to his peers as “Solo,” collapsed during a workout on Feb. 22. He was then transported to a local hospital where he was listed in critical condition and later died. No other details regarding his hospitalization or death have been released.

Jackson was a redshirt sophomore, who had eight tackles and two sacks in 12 games with the team last season.