Mikel Merino reacts to his game-winning brace for Arsenal as he came on as an emergency striker to secure three points against Leicester City.

Sunday, Feb. 16 4 p.m. 8 p.m. 2 p.m. NBC — AMA Monster Energy Supercross Championship: Round 5, Detroit FOX — NASCAR Cup Series: The DAYTONA 500, Daytona International Speedway, Daytona Beach, Fla.