Question: when does the champions league round of 16 start?
Answer: 13 February

The 2017 -- 18 UEFA Champions League knockout phase began on 13 February and will end on 26 May 2018 with the final at the NSC Olimpiyskiy Stadium in Kiev , Ukraine , to decide the champions of the 2017 -- 18 UEFA Champions League . A total of 16 teams compete in the knockout phase .