Consider the question. The 2018 UEFA Champions League Final was the final match of the 2017 -- 18 UEFA Champions League, the 63rd season of Europe's premier club football tournament organised by UEFA, and the 26th season since it was renamed from the European Cup to the UEFA Champions League. It was played at the NSC Olimpiyskiy Stadium in Kiev, Ukraine on 26 May 2018, between Spanish side and defending champions Real Madrid, who had won the competition in each of the last two seasons, and English side Liverpool.

Answer this question based on the passage: where are they going to play uefa champions league final?
What is the step-by-step reasoning process to arrive at the answer: the NSC Olimpiyskiy Stadium in Kiev , Ukraine?
To answer the above question, the relevant sentence is: It was played at the NSC Olimpiyskiy Stadium in Kiev, Ukraine on 26 May 2018, between Spanish side and defending champions Real Madrid, who had won the competition in each of the last two seasons, and English side Liverpool.