Rasmus Dahlin, D: The Sabres believe Dahlin is a generational-type player who could step into a top-four role as an 18-year-old. Dahlin's vision and puck skills also should invigorate a power play that was 20th in the NHL last season (19.1 percent). … Conor Sheary, F:Acquired in a trade from the Pittsburgh Penguins on June 27, the 26-year-old had 30 points (18 goals, 12 assists) in 79 games last season and was part of the Penguins' Stanley Cup championship teams in 2016 and 2017. … Carter Hutton, G: The 32-year-old signed a three-year contract worth $8.25 million July 1 as an unrestricted free agent. Among goalies to play at least 30 games last season, he led the NHL with a 2.09 goals-against average and .931 save percentage for the St. Louis Blues. … Patrik Berglund, F: Acquired in a trade from the Blues along with Sobotka and Thompson on July 1, the 30-year-old missed the first eight weeks of last season with a shoulder injury but scored 17 goals in 57 games. … Vladimir Sobotka, F: The 31-year-old scored an NHL career-high 11 goals in 81 games last season. … Tage Thompson, F: The 20-year-old was selected by St. Louis with the No. 26 pick of the 2016 NHL Draft. He had nine points (three goals, six assists) in 41 games as a rookie last season and could be ready for full-time NHL duty in 2018-19.