Club

• Name: Olympiacos FC (Olympiacos CFP)
• Founded: 1925
• Base: Piraeus, Greece
• Stadium: Georgios Karaiskakis Stadium (Piraeus)
• Colours / nickname: Red & White — commonly called "Thrylos" (The Legend)

Head coach (around 2020/21)

• Name: Pedro Martins (Portuguese)
• Role & style: Martins took charge in late 2018 and led Olympiacos through the subsequent seasons. He typically set up disciplined, organized teams that combine structured defending with quick transitions and wide attacking play. Common tactical shapes under him included variants of 4-2-3-1 or a flat 4-3-3, with emphasis on pressing, full-back involvement and service to a central striker.

Squad notes (around the 2020/21 timeframe)

• Olympiacos' squad in that period mixed established Greek internationals and experienced foreign signings. Notable recurring names around this era included: Youssef El-Arabi (leading striker and goalscorer), Kostas Fortounis (creative midfielder and club figure), José Sá (goalkeeper, before his summer 2021 move), Pape Abou Cissé and Rúben Semedo (central defenders), and Mady Camara (midfield). These players formed the spine of the team across domestic and European fixtures.
• Martins rotated players between domestic league matches and European ties, relying on squad depth and tactical tweaks depending on opposition.

Competitions & performance (summary)

• Domestic: Olympiacos remained one of the leading Super League Greece sides under Martins and were consistently involved in the title race during this period.
• European competitions: Under Martins the club competed in UEFA competition ties (qualifiers and/or group stage football across seasons). Olympicacos’ European participation was a regular feature while Martins was in charge, with the manager often prioritising balance between progressing in Europe and maintaining domestic dominance.

Managerial strengths & legacy around 2020/21

• Pedro Martins is credited with restoring consistent domestic competitiveness and organizing the team effectively for both league and European matches.
• He emphasized tactical discipline, quick transitions and using wide players and full-backs to create chances for a central striker.
• His tenure helped consolidate Olympiacos as Greece’s leading club structure-wise and kept them regularly competing in UEFA tournaments.

Where to get match-by-match and stat details

• For exact line-ups, appearances, goal tallies and match results from the 2020/21 season, refer to official sources and databases such as the club’s official site, UEFA, Transfermarkt, Soccerway or national federation records for comprehensive, match-level data.

Summary

Around the 2020/21 season Olympiacos (Piraeus) were managed by Portuguese coach Pedro Martins, played at Georgios Karaiskakis Stadium, and relied on a core of experienced attackers, midfield creators and central defenders. Martins’ teams were tactically organized, domestically competitive and regularly involved in European competitions during that period.