Akbar Gbaja-Biamila and Kristine Leahy. Celebrities brave the course for 'American Ninja Warrior's' second annual Red Nose Day edition, including one intrepid ET reporter. 'Celebrity Ninja Warrior ...

Kristine Leahy is an American television host and former sports reporter. She is most known as a former host on NBC's American Ninja Warrior. She was the former co-host and newswoman of Fox Sports ...