The knockout stage of the 2000–01 UEFA Champions League featured the eight teams that had finished in the top two of each of the four groups in the second group stage and lasted from 3 April to 23 May 2001. The knockout stage followed a simple, single-elimination format, with the ties in each round (except for the final) being played over two legs, with whichever team scored the most goals over the course of the two legs progressing to the next round. In the case of both teams scoring the same number of goals over the two legs, the winner would be determined by whichever team scored more goals in their away leg. If the teams could still not be separated, a period of extra time lasting 30 minutes (split into two 15-minute halves) would be played. If the scores were still level after extra t