What is the fine-grained topic of the following text: ELEAGUE will take a trip back in time to one of the most iconic moments in Counter-Strike history when it features the Grand Final of its recent CS:GO Invitational 2019, which saw popular North American squad Cloud9 take on the star-studded Europeans of FaZe Clan in a rematch of the ELEAGUE Major: Boston Grand Final. Only return the topic.
ELEAGUE CS:GO Invitational 2019 Grand Final rematch between Cloud9 and FaZe Clan