Conversation so far:
what time does champions league final kick off
The UEFA Champions League final in Madrid kicks off at 21:00 local time on 1 June.
who won the uefa champions league last year
Liverpool won the UEFA Champions League in 2019.
when was the uefa champions league in 2019
It was played at the Wanda Metropolitano in Madrid, Spain on 1 June 2019.

Question: who won in 2018
Self-contained rewrite: who won the uefa champions league in 2018