‘More will be asked of the younger defensemen. Rasmus Ristolainen, 20, and Zach Bogosian, 24, will play in top-four roles again. It’s expected that 2010 first-round pick Mark Pysyk will be an everyday contributor, and 21-year-old Jake McCabe will have a chance to break into the lineup after he impressed Sabres coaches during the scrimmage.’