10 - In the last 10 seasons of the Champions League, only one team has lifted the trophy without finishing top of their group; Inter in 2010. Getty.
5 - Only one country, Spain in 2015, has had five clubs in the group stages. Villarreal's play-off loss to Monaco meant LaLiga failed to match that achievement again this year. Getty.
3 - Spanish clubs have won the last three tournaments (Real Madrid in 2014, Barcelona in 2015 and Real Madrid in 2016), the longest run since English clubs claimed six consecutive European Cups from 1977 to 1982. Getty.
2 - Carlo Ancelotti and Bob Paisley are the only managers to have won the European Cup/Champions League three times. Getty.
12 - Napoli failed to progress to the knockout stages of the 2013-14 tournament despite amassing 12 points, the most a team has accumulated without reward. Getty.
9 - Either Lionel Messi or Cristiano Ronaldo have finished as top scorer in each of the last nine seasons. Neymar was joint top scorer with both men in 2014-15. Getty.
78 - Luis Enrique has the highest win percentage of any Champions League manager after a minimum of 20 games with 78 per cent. Of the active coaches, Guardiola is next on 62%. Getty.
156 & 51: Former Real Madrid goalkeeper Iker Casillas, now with Porto, has played the most games (156) and kept the most clean sheets (51) in the competition since 1992-93. Getty.
17 - Maccabi Tel Aviv in 2015-16 were the most recent of the 17 teams to have lost all six of their Champions League group-stage games. AEK Athens drew all six in the 2002-03 first group stage. Getty.
6 - A 100% win ratio has been achieved six times in a Champions League group-stage campaign, by Real Madrid (11-12, 14-15), AC Milan (92-93), Paris Saint-Germain (94-95), Spartak Moscow (95-96) and Barcelona (02-03). Getty