Some more details:
American Christy Krall, widely credited with helping Chan acquire the quad jump that has propelled him to the top of the podium, has resigned citing a difference in coaching philosophies.
Krall said her role had diminished while Chan's other coach Kathy Johnson, a modern dance teacher who studied dance at Juilliard but also works with skaters, had assumed a larger role.
Chan was more interested in following a “different mode of training” this season with a focus on the artistic side of the sport.
“It's all good, it works, it's successful,” Krall said. “But I was stepping out of the coaching role I was in and becoming an instructor, and I personally wanted to do more than that.
Krall informed Skate Canada officials and Lewis Chan, Patrick's father, of her decision the day after the world championships in Nice, France, where the 21-year-old from Toronto claimed his second consecutive world title on March 31.
Krall, who coaches other skaters out of Colorado Springs, also said the split was amicable.
“We will always be friends,” she said. “I always want to see him win, I will always be a small part of his career, and he and I will always remain very good friends.”