https://www.pcgamer.com/fifa-19-will-feature-uefa-champions-league/

At E3 2018 EA announced that the UEFA Champions League will feature heavily in FIFA 19. 

You'll be able to play for the cup in tournament mode and career mode. Alex Hunter returns in The Journey singleplayer campaign, and he will also be chasing glory in the UEFA Champions League. FIFA's microtransaction-driven squad-building mode, Ultimate Team, will also feature "live and authentic Champions League content."