BOSTON (AP) — Three Tufts University men’s lacrosse players remained hospitalized with a rare muscle injury Monday after participating in a voluntary, supervised 45-minute workout earlier this month, according to a university spokesperson. Read this article for free: Already have an account? To continue reading, please subscribe: * BOSTON (AP) — Three Tufts University men’s lacrosse players remained hospitalized with a rare muscle injury Monday after participating in a voluntary, supervised 45-minute workout earlier this month, according to a university spokesperson. Read unlimited articles for free today: Already have an account? BOSTON (AP) — Three Tufts University men’s lacrosse players remained hospitalized with a rare muscle injury Monday after participating in a voluntary, supervised 45-minute workout earlier this month, according to a university spokesperson.

The players became ill in the days following a Sept. 16 workout that was led by a Tufts alum who is a recent graduate of the BUD/S Navy SEAL training program. About 50 team members participated.

All were evaluated by medical professionals, with a total of nine requiring hospitalization for rhabdomyolysis, according to Patrick Collins, the university’s director of media relations. The three who were still hospitalized Monday were responding to treatment and were expected to be discharged soon, he said. Some team members have been medically cleared to resume training.

All team practices have been postp.