Another bizarre situation occurred when Grzelcyk played his first NHL game. That moment happened right at PPG Paints arena. Not only did he
play his first NHL game against the Penguins at PPG arena, he would also score his very first NHL goal against the Penguins, but this time at TD Garden in Boston. Regardless, all his major milestones seem to be against the Penguins and with many happening at PPG arena, so it's very fitting for him to be joining that team.