The University of Michigan announced it was pausing summer voluntary workouts for field hockey, volleyball, swimming and diving, and ice hockey on Tuesday.
The sports were paused because of a combination of COVID-19 test results and contact-tracing protocol, according to the university.
Ice hockey is set to resume workouts this week and the other programs are scheduled to resume the week of Aug. 3.
The most recent test results were not announced, but Michigan released results for July 20 and 21 when 94 student-athletes, coaches and staff were tested.
From those 94 COVID-19 tests, four were positive. At that point overall, 559 student-athletes had been tested, producing 12 positive tests.
Michigan's decision to pause those four sports comes four days after Michigan State announced it was instructing members of its football team to self-isolate or quarantine for 14 days. The Spartans, who had a second staff member and one student-athlete test positive, decided to take precautionary measures based on individuals coming in contact with an individual who tested positive.