Staal, a veteran center who joins his brother Marc in New York, cost the Rangers Aleksi Saarela — a third-round draft pick last year — as well as two future draft picks. Read Story

The Washington Capitals placed the struggling forward Brooks Laich on waivers, a move that gives the N.H.L.’s top team some potential flexibility. Read Story

McDonagh’s late play set the stage for a winning goal by Kevin Klein with 2 minutes 53 seconds left as the Rangers beat the Dallas Stars, 3-2. Read Story