Bayer Leverkusen and Olympiakos have faced each other on four occasions in the UEFA Champions League, with both sides winning two games apiece. The German side did win the only one to date to have taken place in Germany, however (2-0 in October 2002).

Olympiakos have only won one of their 11 away games against German sides in European competition (D1 L9), scoring just five goals across the 11 and failing to keep a clean sheet on every occasion (24 conceded).

Of the 191 instances of a team losing by 2+ goals at home in the first leg of a knockout stage tie in the European Cup/UEFA Champions League, only two have managed to progress following the second leg: Manchester United versus Paris SG (2018-19 last 16, 3-3 on aggregate) and Ajax versus Benfica (1968-69 quarter-finals, 4-4 on aggregate).

Bayer Leverkusen have progressed from 20 of their 22 previous knockout stage ties in major European competition after winning the first of two legs, with their only eliminations coming against Atlético Madrid in 2014-15 (UEFA Champions League last 16) and Udinese in 1999-00 (UEFA Cup last 32).

Olympiakos were beaten 0-2 at home in the first leg of this tie but haven’t lost both legs of a knockout stage tie in major European competition without scoring since 2012-13 (0-3 and 0-1 v Levante in the UEFA Europa League last 32).

Having won their last two (v Kairat and Ajax), Olympiakos will be aiming to win three consecutive away games for the first time ever in the European Cup/UEFA Champions League (82 away games played).

Kasper Hjulmand has won 44.4% of his UEFA Champions League games in charge of Bayer Leverkusen (W4 D3 L2); the highest win percentage of any manager with the German side in the competition (min. 3 games).

Olympiakos have made the most high-intensity pressures (3,533) and forced the most high turnovers (102) of any team in the UEFA Champions League this season. They made 497 high-intensity pressures in the first leg of this tie; the second-most by a team in a game in this edition, after Villlarreal’s 514 v Bayer Leverkusen.

Bayer Leverkusen’s Patrik Schick has scored four goals in seven UEFA Champions League appearances under Kasper Hjulmand, averaging a goal every 107 minutes played. His record in the competition under all managers other than Hjulmand stands at one goal in 27 appearances, with a minutes per goal ratio of 1,552.

Only Vitinha (146) has made more line-breaking passes than Bayer Leverkusen’s Aleix García (142) in the UEFA Champions League this season. 76 of those have been passes breaking the opposition’s attacking line; the outright most by any player.