Hayes, 23, had nine points in 31 regular-season games with the Blackhawks last season, his first in the NHL, and played in two postseason games.
Pirri, 21, had two assists in five games with Chicago during the 2011-12 regular season and paced the club with four goals and five points in four games during the 2011 preseason.
Stanton, 23, has yet to appear in an NHL game.
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