Unfortunately, Sarah Meier's injury from yesterday has not yet healed enough for her to compete today, and has withdrawn from the competition. Her other Grand Prix assignment is the Cup of Russia, three weeks from now.
Also of news is this article published by CBC Sports. Bryce Davison, who was scheduled to compete with partner Jessica Dube this weekend, injured his knee in a training session last week. He's out "indefinitely", but note that a source suggests that this could even be career-ending. Dube and Davison were also scheduled to compete in the Cup of Russia.