Whakakī i te rerenga e whai ake nei: I te Hui-tanguru 26, 2018, i hokona a McDonagh (me J. T. Miller) ki te Tampa Bay Lightning hei utu mo Libor Hájek, Brett Howden, Vladislav Namestnikov, he kowhiringa tuatahi i te 2018 NHL Entry Draft, me te kowhiringa tuarua-a-waa i roto i te
Ko te 2019 NHL Entry Draft. Ko te hokohoko i whai ake i nga wiki o nga korero hokohoko i whakaohohia e te reta a te kapa ki nga kaiwhaiwhai Rangers i te Hui-tanguru 8, 2018, e kii ana i te hangahanga. I te Paenga-whāwhā 18, 2018, i takaro a McDonagh i tana 100th mahi NHL playoff kēmu.