Charlie broke his ankle playing hockey, not in singles, AFAIR?
Yes, he did break his ankle playing hockey in 2005, the same year he and Meryl went to work with Shpilband & Zoueva. He skated singles one more season - when he and Meryl won Jr. nationals. But Igor convinced Charlie that his future was in dance and with college and dance training there was just not enough time for singles as well.