CHARLOTTE, N.C. -- Daytona 500 champion Trevor Bayne will miss Friday's Nationwide Series race at Richmond International Raceway to undergo further tests for symptoms believed to be related to an insect bite he received earlier this month.
Bayne, who was not scheduled to run in Saturday's Sprint Cup race for the Wood Brothers, was hospitalized Wednesday afternoon. He complained of fatigue and nausea and later was sent to a facility outside the Charlotte area that specializes in his symptoms.
Bayne remained hospitalized as of Friday afternoon.
"Trevor was not feeling well early this week and he is currently being evaluated for lingering symptoms that may be related to his previous insect bite," Roush Fenway Racing president Steve Newmark said in a statement.
"Unfortunately Trevor will not be available to drive the No. 16 Ford for us this weekend at Richmond. As of now, our plans are to use a substitute driver from the Roush Fenway family of drivers in place of Trevor at Friday night's race."
Later, it was announced Chris Buescher, a Roush Fenway development driver, would take Bayne's place.
Bayne, 20, ranks fifth in the Nationwide standings for Roush Fenway Racing, which owns his contract. Missing the race will severely damage his run for the championship.
"Obviously Trevor wanted to be in Richmond and he's upset about not being able to compete,'' Newmark said. "However, his health is our top priority and we insisted that he have these tests to get to the bottom of his symptoms.''
Bayne developed symptoms believed to be related to an insect bite following the April 3 Martinsville race. His left elbow swelled to almost twice its normal size and he developed a rash later in the week.
Bayne ignored the symptoms through the April 17 Cup race at Texas, but he was hospitalized the following day in Charlotte after complaining his arm was numb throughout the race.
He was released the same day and told to continue with normal activities, but with symptoms persisting, Roush Fenway officials believed there was no alternative but to find a specialist to determine the problem.
David Newton covers NASCAR for ESPN.com. He can be reached at firstname.lastname@example.org.