20-Year-Old Olivia Kerstetter Out of Hospital After Staph, Resumes Light Training

Olivia Kerstetter, the 20-year-old American who finished third at the 2025 CrossFit Games, was hospitalized for five days in early February 2026 after a cellulitis (staph) infection that began from a cut on her knee and has returned to the gym after a total of 10 days away. Her Instagram post dated February 11, 2026 documented the episode and showed her recovery timeline.

Kerstetter’s infection developed from a knee abrasion that she covered with knee sleeves. As she has described the situation, “as Kerstetter puts it, wearing dirty knee sleeves over an abrasion and apparently you have a recipe for disaster.” That abrasion preceded visible swelling and systemic symptoms that Kerstetter detailed in social posts as “fever, chills, sweats, lots of pain, and even more swelling.”

Medical staff admitted Kerstetter for monitoring and treatment, and she “was admitted into the hospital for the next five days as they monitored the situation to make sure the infection did not spread to her bloodstream or knee joint.” The hospitalization was precautionary to check for extension of infection into the joint or bacteremia, risks that concern competitive lifters and gym-goers when cellulitis advances.

Kerstetter’s Instagram entry on February 11, 2026 included language that the staph infection “was thought to be MRSA,” though no lab-confirmed MRSA result has been published in her posts or accompanying reporting. After discharge and recovery time outside the gym, she is “out of the hospital and is back in the gym after 10 days away.”

Specifics remain limited: the posts and coverage do not list the treating hospital, the precise admission and discharge dates beyond the five-day stay, or detailed treatment information such as IV antibiotics or wound procedures. The available social documentation confirms the five-day hospitalization, the knee-origin cut, the symptoms quoted above, and the 10-day total absence from training, but does not confirm a formal MRSA diagnosis or whether her immediate return to training is at a light or full intensity.

Kerstetter’s quick public updates give fellow athletes a clear signal about the timeline from onset to gym return: cut on the knee, rapid swelling and systemic symptoms, five days of inpatient monitoring for spread to bloodstream or knee joint, and a 10-day interruption before resuming activity. Her Instagram remains the primary firsthand record of the incident and recovery.