NASCAR star Kyle Larson (left) used a racial slur on a live stream during a virtual race Sunday, uttering the N-word to other drivers when he appeared to think he was having communication issues. During a check of his microphone, Larson can be heard asking, 'You can't hear me?' That was followed by the N-word. The 27-year-old Larson was speaking with other drivers on an open line that was being broadcast on Twitch (right), which live streams video game competitions among other things. 'Hey Kyle, you're talking to everyone, bud,' fellow NASCAR driver Anthony Alfredo said. Another voice could be heard saying 'no way did that just happen,' while others chimed in with 'yikes' and 'oh my gosh.' 'Oh damn,' said another voice. 'He did not just say that.' The Twitch display shows viewers which driver is speaking at any given time. And although Larson appeared to think he was having communication issues, the audience could hear him clearly and see his name on the screen when he uttered the racial slur. Larson's epithet was heard on IndyCar driver Conor Daly's live stream and subsequently went viral afterwards. NASCAR has pivoted to iRacing during the coronavirus outbreak, although Larson used the slur during a Sunday night race against drivers from other circuits, such as Indy Car. The event was not part of NASCAR's official series. Larson is half Japanese - his grandparents spent time in an interment camp in California - and he climbed from short track racing into NASCAR through its 'Drive for Diversity' program. He is the only driver of Japanese descent to win a major NASCAR race. Larson, in his seventh full season in NASCAR, is in the final year of his contract with Chip Ganassi Racing. He was at the top of the list of a crowded free agent field when the circuit was suspended four races into the season as sports stopped during the coronavirus crisis.