Mezue ahịrịokwu na-esonụ: N'oge 2015-16 na-esote, na mgbede nke abalị mmeghe na Ọktọba 6, 2015, Harrison kpochapụrụ mgbaghara, ma nyeghachi ya Manitoba Moose nke American Hockey League. N'ịlaghachi na AHL maka oge mbụ kemgbe 2010, Harrison pụtara na egwuregwu 18 na Moose tupu etinye ya na nkwekọrịta nkwekọrịta nke Jets, ya na Andrew Ladd na Matt Fraser na Chicago Blackhawks na mgbanwe maka Marko Daňo na nhọrọ mbụ na
2016 NHL Entry Draft na February 25, 2016. E kenyere ya ozugbo na Blackhawks AHL mmekọ, Rockford IceHogs.