Reliable sources (including direct from Kaitlyn) have confirmed that she had a training accident on the weekend when her blade got caught on the boards. She has a broken fibula (small bone of the leg) near her ankle and they'll be out of Canadian Nationals while she recovers. They intend to try for Worlds but will not have much time to train when she's allowed back on the ice. Sending sympathy and best wishes to both Kaitlyn and Andrew. Get well soon.