Scary moment for Raheem Mostert -- the NFL running back's 3-year-old son was rushed to the hospital after suffering a high fever and other severe COVID-19 symptoms this week ... but thankfully, he's recovering back home.
The 49ers star's wife, Devon, shared the terrifying news on Wednesday ... posting a photo of their son, Gunnar, in an ambulance.
"If you think COVID is a joke, this is our sweet G man in an ambulance today after I called 911 because he was lethargic, skin was gray, lips were purple, and had a 103.5 temperature," Devon said.
"I'm crying even typing this ... this is all SO SCARY."
The good news is Gunnar is back home with his family ... but Mostert -- who is currently on the Niners' injured reserved list -- made it clear people should not be taking this virus lightly.
"I could say a lot, but I'm going to keep this short because my family gets 100% of my time right now," the 29-year-old said.
"Take COVID seriously! It's not a joke!!"
Raheem and Devon got married in 2017 and have 2 kids -- Gunnar and 1-year old Neeko. The couple also just announced they're expecting a third baby on the way last week.
Get well soon, Gunnar.