Trending Now - Missed NFL Kick Sparks Critical Diagnosis for Derby Expert

WHO:

CBS News - Mark Toothaker, a stallion sales manager for Spendthrift Farm in Lexington, Kentucky.

CBS News - Malory Toothaker, Mark's wife and a nurse.

CBS News - Younghoe Koo, former New York Giants' placekicker.

WHAT:

CBS News - Mark Toothaker experienced a seizure after laughing at a missed field goal attempt by Younghoe Koo.

CBS News - Doctors diagnosed Toothaker with a brain tumor the size of a tennis ball, which was benign.

CBS News - Toothaker was discharged from the hospital after 24 hours.

WHERE:

CBS News - The incident occurred in Lexington, Kentucky, where Spendthrift Farm is located.

WHEN:

CBS News - The missed field goal attempt by Younghoe Koo occurred in December of the previous year.

CBS News - Mark Toothaker is preparing for the Kentucky Derby, which is scheduled for a future date.

WHY:

CBS News - The seizure led to the discovery of the brain tumor, which could have been life-threatening.

HOW:

CBS News - Toothaker felt a shock in his left arm and subsequently lost consciousness for 25 minutes before being taken to the hospital.

(UPDATED May 2, 2026 19:18 UTC)

Mark Toothaker, a stallion sales manager at Spendthrift Farm in Lexington, Kentucky, experienced a seizure after laughing at a missed field goal attempt by Younghoe Koo, the former New York Giants' placekicker. Doctors discovered a benign brain tumor the size of a tennis ball during his hospital stay, which lasted just 24 hours, and he is now preparing for the upcoming Kentucky Derby. The seizure, which caused Toothaker to lose consciousness for 25 minutes, ultimately led to the diagnosis that could have been life-threatening.