This will be just the third meeting between Barcelona and Olympiakos, with the previous two coming in the 2017-18 group stage in the UEFA Champions League. Barcelona won 3-1 in the home fixture, before drawing 0-0 away from home.

Olympiakos have never won away to a Spanish team in European competition, losing 14 of their 16 previous matches (D2). The only games they managed to avoid defeat in were both against Deportivo de La Coruña, drawing against them in 2001 (2-2) and 2004 (0-0).

No Greek team has ever won away to a Spanish opponent in the UEFA Champions League, with 17 of the previous 21 attempts ending in defeat (D4). This will be the first such fixture played in the competition since a 3-1 defeat for Olympiakos at Barcelona in October 2017.

Barcelona were beaten by Paris SG in their previous UEFA Champions League game, but have never lost multiple home games in the group stage of a single edition of the European Cup/Champions League.

Olympiakos are one of only two teams yet to score a goal in the UEFA Champions League this season (along with Ajax). The Greek side have attempted 28 shots without success so far, and have only hit the target with six of those (21%).

Barcelona have scored at least one goal in each of their last 22 UEFA Champions League matches (58 goals). If they find the net here, it will be their outright second longest scoring run in the competition, only behind a 29-game streak between November 2009 and March 2012, recorded under Pep Guardiola.

62.5 percent of the chances created by Olympiakos players in the UEFA Champions League this season have come from the right-sided attacking third (15/24); the highest of any team from that side. Indeed, their total of 15 chances created from the right third is also a team-high in this edition.

Barcelona’s Pedri has made more line-breaking passes under high-intensity pressure than any other player in the UEFA Champions League this season (18). Meanwhile, midfield partner Frenkie de Jong (64/67) has the highest pass completion rate under high-intensity pressure in the current edition (95.5% - min. 50 attempted).

Olympiakos striker Ayoub El Kaabi has made the most high-intensity pressures in the final third of any player in the UEFA Champions League this season (57). The Moroccan is yet to score in this edition, however, attempting the joint-most shots of any striker who hasn’t yet found the net (7 – level with Viktor Gyökeres).

Since the start of last season, Barcelona’s Lamine Yamal has averaged more completed dribbles per 90 than any other player in the UEFA Champions League (4.5 – min. 500 minutes played). In the same period, he also has the highest success rate of any winger (57.7%) to attempt at least 30 dribbles. Yamal will be the youngest player to make 25 Champions League appearances in this game (18 years, 100 days).