DAYTONA BEACH, Fla. Felipe Nasr has tested positive for the coronavirus and will miss the IMSA sports car race Saturday at Daytona International Speedway. Action Express Racing said Friday that Gabby Chaves will replace Nasr and the Brazilian would quarantine in Miami. Nasr said he began to feel ill while driving Thursday to Daytona Beach. Hopefully, I will recover quickly, and my doctors can clear me to return to racing soon.Nasr, the 2018 IMSA prototype championship, was scheduled to drive the No. Chaves drove for the team in 2018 at Petit Le Mans, finishing eighth.