Staal grew up playing minor hockey for the Thunder Bay Kings AAA organization. After his minor midget year, Staal was selected in the first round (2nd overall) by the Peterborough Petes. He was the second Staal in the NHL, after older brother Eric was drafted second overall in the 2003 NHL Entry Draft. After a two-year Ontario Hockey League (OHL) career, in which he won a J. Ross Robertson Cup and appeared in the 2006 Memorial Cup with the Peterborough Petes, Staal was drafted second overall by the Pittsburgh Penguins in the 2006 NHL Entry Draft. He made the immediate jump from junior to the NHL after being drafted and set several NHL records in his rookie season, including youngest player to score on a penalty shot, to score two shorthanded goals in one game, to score a hat trick and the most shorthanded goals by a rookie in one season. Staal was also a Calder Memorial Trophy nominee and was named to the NHL All-Rookie Team.