Monaco twice led on the night and came close to forcing extra-time but Orkun Kokcu's 84th minute equaliser helped Benfica scrape through in Lisbon, with Barcelona or Liverpool awaiting in the next round.
Benfica hold off Monaco in thriller to reach Champions League last 16
Benfica snatched a nailbiting 3-3 draw against Monaco on Tuesday to reach the Champions League last 16 with a 4-3 aggregate victory in the play-off round.
