Skating on Heinz: Penguins' Patric Hornqvist practices Friday for his team's game against the Philadelphia Flyers in the Stadium Series at Heinz Field. (Photo by Matt Freed/Post-Gazette) #Pittsburgh #PGH #412 #Penguins #PittsburghPenguins #LetsGoPens #LetsGoPenguins #StadiumSeries #NHL #Hockey #Hornqvist #PGPhotos