UFC featherweight champion Alex Volkanovski got a beatdown from COVID-19 earlier this year. After contracting the virus, the Australian was forced to withdraw from his title defence against Brian Ortega scheduled for UFC 260 in March.
After recovering from the virus Volkanovski revealed that his symptoms included coughing up blood. That distressing symptom was a sign that COVID had caused pneumonia in his lungs.
Volkanovski also said that he needed to go to the hospital at one point because the oxygen level in his blood dropped to 91%. A normal blood oxygen level is 95% or higher.