Mezue ahịrịokwu na-esonụ: Dịka onye nweere onwe ya na oge ezumike, McKenna gbatịrị ọrụ ya site na ikwenye na nkwekọrịta otu afọ, abụọ na Ottawa Senators na July 1, 2018. Ọ sonyeere AHL mmekọ, ndị Belleville Senators ịmalite oge 2018<unk>19. Mgbe egwuregwu isii ya na Belleville gachara, ndị Ottawa kpọghachiri McKenna. Ọ pụtara n'egwuregwu 10 na ndị Senators, na-edepụta 1-4-1 ndekọ tupu a gbanwere ya na Tom Pyatt na otu
Nhọrọ nke isii nke 2019 na Vancouver Canucks na mgbanwe maka Anders Nilsson na Darren Archibald na Jenụwarị 2, 2019. A chụrụ ya n'ọrụ mgbe ọ kwadoro Jacob Markström maka egwuregwu abụọ, na ebumnuche Canucks bụ ịnyeghachi ya na ngalaba AHL ha, Utica Comets. Ndị Philadelphia Flyers kwupụtara ngwa ngwa na ha enweghị ihe ọ bụla ka ha na-emeso ndị na-eche nche Brian Elliott, Michal Neuvirth, na Anthony Stolarz. McKenna mere Flyers mbụ ya na Jenụwarị 8, 2019 megide Washington Capitals. Ọ bụ onye goolu nke asaa bidoro Flyers n'oge 2018/19 n'egwuregwu nke iri anọ na atọ. Na Jenụwarị 30, 2019, McKenna kwenyere na mgbazinye ego nke ụbọchị 14 na Lehigh Valley Phantoms. Ọ gara 2-1 n'oge oge ahụ mgbe ọ na-egwu egwu maka aha iri na atọ nke AHL.