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Referees
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Germany
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Lasse Koslowski
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All Matches
Lasse Koslowski
28 total assignments
Season
All seasons
2025/26
2023/24
2021/22
2019/20
Role
All roles
Assistant Referee (28)
Fourth Official (1)
Country
All countries
Europe (1)
Competition
All competitions
Champions League (9)
Europa League (8)
UEFA Europa Conference League (6)
UEFA Youth League (2)
FIFA WC European Qualifiers (2)
UEFA Europa League Play-Off Round (First Legs) (1)
FIFA World Cup qualification (UEFA) (1)
28 matches (filtered)
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Champions League
Aston Villa FC
vs
Club Brugge KV
🚩
Assistant Referee 2
Europa League
Beşiktaş
vs
Malmö FF
🚩
Assistant Referee 1
UEFA Europa Conference League
NK Olimpija Ljubljana
vs
Losc Lille
🚩
Assistant Referee 1
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