NBC Sports anchor Mike Tirico abruptly departed from the network’s coverage of the Kentucky Derby today after experiencing a “significant reaction” to his nut allergy. The exit came earlier today and as reports about Tirico’s illness drew concern from viewers Saturday afternoon,

NBC Sports host Mike Tirico said on social media he hates being a “late scratch” from Saturday's 151st Kentucky Derby because of a “significant” nut allergy reaction during coverage of the marquee race at Churchill Downs.