Tottenham Hotspur in 2010–11 Only one city has been represented in the knockout phase by three teams in the same season: London in 2010–11, when Arsenal, Chelsea and Tottenham Hotspur all progressed to the first knockout round. Istanbul is the only city to have been represented in the group stage by four teams: Beşiktaş, Fenerbahçe, Galatasaray and İstanbul Başakşehir. England is the only nation with teams from five cities who have won the competition: Liverpool: Liverpool Manchester: Manchester United Nottingham: Nottingham Forest Birmingham: Aston Villa London: Chelsea Apart from the two finals, only six other derbies between teams of the same city have ever been played: 1958–59 (Madrid): Real Madrid vs Atlético Madrid (semi-finals) 2002–03 (Milan): Inter Milan vs Milan (semi-finals) 2003–04 (London): Chelsea vs Arsenal (quarter-finals) 2004–05 (Milan): Inter Milan vs Milan (quarter-finals) (the second leg was abandoned and awarded to Milan due to disturbances from the Inter fans) 2014–15 (Madrid): Real Madrid vs Atlético Madrid (quarter-finals) 2016–17 (Madrid): Real Madrid vs Atlético Madrid (semi-finals) The 2002–03 semi-final tie between Milan and Inter Milan was the first time both games of a two-legged tie were played in the same stadium (San Siro), as the teams shared the stadium as their home venue. Milan won via the "away goals" rule. The teams also played each other in the same stadium in the 2004–05 quarter-finals. The same situation occurred three times in the 2020–21 season, due to travel restrictions related to the COVID-19 pandemic: two round of 16 ties (RB Leipzig vs Liverpool and Borussia Mönchengladbach vs Manchester City) saw both legs played at the Puskás Aréna in Budapest (Leipzig and Borussia were the designated "home" teams for the first legs, and Liverpool and Manchester City were for the second), while the quarter-final tie between Porto and Chelsea saw both legs played at the Ramón Sánchez Pizjuán in Seville (Porto were the designated "home" team for the first leg, and Chelsea were for the second). Specific group stage records Most goals scored in a group stage: 25 Paris Saint-Germain (2017–18) Fewest goals scored in a group stage: 0 Deportivo La Coruña (2004–05) Maccabi Haifa (2009–10) Dinamo Zagreb (2016–17) Fewest goals conceded in a group stage: 1 Milan (1992–93) Ajax (1995–96) Juventus (1996–97 and 2004–05) Villarreal (2005–06) Liverpool (2005–06) Chelsea (2005–06) Manchester United (2010–11) Monaco (2014–15) Paris Saint-Germain (2015–16) Barcelona (2017–18) Manchester City (2020–21) Most goals conceded in a group stage: 24