Trevor Bayne was admitted to Carolinas Medical Center-University in Charlotte, NC, on Sunday morning after returning home from the Sprint Cup race at Texas Motor Speedway.

According to a Roush Fenway Racing team spokesman Corey Wynn, Bayne’s illness has not been diagnosed. But the 20-year-old winner of this year’s Daytona 500 had tweeted earlier: “Not sure if its a spider bite or a tick bite . . . But either way I'm in a hospital bed with a needle in my arm! #nobueno”.

Bayne began exhibiting symptoms Tuesday. On Friday, he was taken to the infield care center at Texas Motor Speedway, where he was administered antibiotics.
Then, Saturday night, he went to the emergency room when the Roush plane returned to Charlotte, and he was admitted to the hospital.
Bayne finished 17th in the Samsung 500 on Saturday night, matching his Sprint Cup debut at Texas Motor Speedway last November. It was Bayne’s best finish since he won the Daytona 500 in February in only his second career Cup start.