Longtime figure skating coach Frank Carroll, who over the course of a 60-year career helped guide six Olympic medalists at 10 Winter Games, including Michelle Kwan and Evan Lysacek, has died.

Defending champions Alexa Knierim and Brandon Frazier withdrew from the U.S. Figure Skating Championships on Wednesday night when he tested positive for COVID-19.

Paired with fan-favorite pro Derek Hough, the two ended up winning the coveted mirrorball trophy, beating out stars like Chad Ochocinco, Pamela Anderson and Erin Andrews. I didn't give Derek Hough a day off in the few months we did this show." "Derek Hough was the best partner and always will be," she continued. It's something that I worked really hard for. For even more Scherzinger, catch her every Wednesday night on The Masked Singer, airing at 8 p.m. ET/PT on Fox.