The 44-year-old Johnson is the first driver in any NASCAR series to test positive and the news Friday evening cast a shadow over the historic NASCAR-IndyCar doubleheader races coming up Saturday and Sunday. There was no indication any races would be affected.
The positive tests occurred among 19 of the 30 teams, according to results of the samples sent to the Sports Medicine Research and Testing Laboratory in South Jordan, Utah. There were 3,185 samples collected and tested through the first week of intake testing.
The COVID-19 pandemic, which has already disrupted the entire sports world, has forced league officials to rule out an all-star game for the first time since World War II.