UEFA.com picks out our top 30 stats from another record-setting campaign.
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0 On Matchday 2 against Arsenal, Dundalk became the first side to avoid committing a single foul in a match since the UEFA Europa League began in the 2009/10 season.
1 Dinamo Zagreb equalled the record of Standard Liège (2011/12) and Salzburg (2017/18) for the fewest goals conceded in a group stage when they shipped just one in Group K.
3 LOSC Lille's Yusuf Yazıcı became the first player in the history of UEFA club competition to score two away hat-tricks in a single season, hitting trebles at Sparta Praha and AC Milan.
3 Roma became the first team to make three substitutions in the first half of a UEFA Europa League match in their semi-final first leg at Manchester United.
4 Nice's Amine Gouiri became the third French player to score in each of his first four starts in European competition in the 21st century, after Georges-Kévin Nkoudou for Marseille in 2015 and Monaco's Kylian Mbappé in 2017.
4 Villarreal had lost their four previous major European semi-finals – three in the UEFA Cup/UEFA Europa League and one in the UEFA Champions League – while Manchester United boss Ole Gunnar Solskjaer had been defeated in four semi-finals in all competitions before both broke their ducks in this season's UEFA Europa League semis.
5 Unai Emery was the first manager to reach five finals in a single UEFA club competition – Sir Alex Ferguson, Carlo Ancelotti, Marcello Lippi and Miguel Muñoz all got to four European Cup finals.
7 Four players shared top spot in the UEFA Europa League scorers chart with seven goals apiece: Villarreal's Gerard Moreno, Benfica's Pizzi, Borja Mayoral of Roma and LOSC Lille's Yusuf Yazıcı. Thanks to his five assists, Moreno nominally had a better record than the other three goalscorers, because players finishing level on goals scored are ordered next on assists and then on fewest minutes played.
8 Three matches this term equalled the UEFA Europa League record of eight goals in a game – Villarreal 5-3 Sivasspor (22/10/2020), Leverkusen 6-2 Nice (22/10/2020) and Manchester United 6-2 Roma (29/04/2021).
9 Arsenal became the ninth team to take the maximum 18 points in the group stage after Salzburg (three times), Zenit (2010/11), Anderlecht (2011/12), Tottenham (2013/14), Dinamo Moskva (2014/15), Napoli (2015/16), Shakhtar (2016/17) and Eintracht Frankfurt (2018/19).
9 Ajax set a new record this season by appearing in the UEFA Europa League round of 32 for a ninth time.
13 The 13 goals registered in the tie between Man. United and Roma were the highest in UEFA Cup/UEFA Europa League semi-final history, surpassing the 11 between Porto and Villarreal in 2011. United were also just the second side in the competition's history to net eight goals across the two legs of a semi-final, after Alavés beat Kaiserslautern 9-2 on aggregate in 2000/01.
13 José Mourinho had won each of his last 13 knockout ties in the UEFA Cup/Europa League (including finals) and had not lost an away knockout match in the competition since December 2002, until his Tottenham team crashed out with a 3-0 reversal at Dinamo Zagreb in the round of 16.
14 Rangers' 9-5 aggregate win over Royal Antwerp in the round of 32 was the highest-scoring two-legged tie in the UEFA Cup/UEFA Europa League since Helsingborg vs Heerenveen (agg: 8-6) in the 2007/08 first round. Against Antwerp, Rangers also became the first side ever to score four penalties in a European tie, with the five spot kicks converted by both teams during the two legs also a record (excluding qualifiers).
15 More Roma players scored in the UEFA Europa League this season than any other team's, with 15 Giallorossi squad members on target.
18 Hoffenheim's Munas Dabbur took his haul of group stage goals to 18 in the UEFA Cup/UEFA Europa League – equalling the record of Aritz Aduriz.
21 The number of penalties scored in the extraordinary final shoot-out: 11 for Villarreal and 10 for Manchester United, before Red Devils goalkeeper David de Gea was ultimately denied by opposite number Gerónimo Rulli. The Yellow Submarine were only the second club to win a European tie on spot kicks with all 11 players converting their penalties, after Skonto Riga vs Olimpija Ljubljana in a 1993/94 UEFA Champions League qualifier.
22 Molde became the first Norwegian club to reach the last 16 of a European competition since Vålerenga made the quarter-finals of the 1998/99 UEFA Cup Winners' Cup – 22 years ago.
26 Benfica did not lose any of their four home games in the competition this term (including the one they played in Rome), extending their unbeaten record to all 26 of their home matches in the UEFA Europa League (group stage to final).
27 Granada became the 27th Spanish side to play in the European Cup/UEFA Champions League/UEFA Cup/UEFA Europa League, and the seventh to get to the quarter-finals in their first season in this competition since 2009, along with Atlético, Valencia, Villarreal, Sevilla, Athletic and Celta Vigo.
29 In the round of 32 second leg against Braga, Edin Džeko struck his 29th goal for Roma in European competition (excluding qualifying) – overtaking the previous club record set by Francesco Totti.
42 Benfica claimed two records this season, having now played 42 matches and scored 71 goals in the UEFA Europa League knockout phase.
56 Kemar Roofe's goal for Rangers against Standard Liège on Matchday 1 was scored from a distance of 50 metres, the furthest ever for a goal in the UEFA Europa League. However, this feat was surpassed by Jordi Gómez of Omonoia (56 metres) against PSV just a week later.
57 On Matchday 4 against PAOK, PSV won a European game despite conceding the first two goals for the first time in 57 years and for just the second time in their history – the other occasion coming against Esbjerg in 1963.
59 Leicester's 4-0 victory over Braga on Matchday 3 was the first time they had scored four goals in a UEFA competition game since their first ever match in Europe 59 years ago, when they won 4-1 against Glenavon in the European Cup Winners' Cup in 1961.
61 Villarreal became the 61st club to reach the final of the UEFA Cup/UEFA Europa League.
86 Ajax came from behind after 86 minutes to win at LOSC Lille in their round of 32 first leg – it was the latest a team has trailed but gone on to win a match in the knockout stage in UEFA Europa League history (excluding extra time).
93 Matchday 3 spawned a record 93 goals – 12 more than any other matchday in the history of the UEFA Europa League group stage.
100 Gerard Moreno's strike in the final against Manchester United brought up a century of 2020/21 goals for Villarreal in all competitions. It was also his 82nd goal for the club – equalling the Yellow Submarine record of ex-United forward Giuseppe Rossi – and the first goal in 389 minutes of competitive football between the sides.
200 On Matchday 3 at Ludogorets, Harry Kane notched his 200th goal for Tottenham, making him the third man to achieve that milestone for the club. The strike was his 100th away from home for Spurs, on his 300th appearance for them in all competitions.