Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

[4] Missing from the first-team players was Igor Strzałek, who was included in the Under-19 national team playing in the European Championships at the time.

[6] In the next match against Qarabağ FK, Legia were led by assistant coach Przemysław Małecki as Kosta Runjaić left the training camp for private reasons.

[7] The last and most difficult opponent during the training camp was the Austrian champion FC Red Bull Salzburg, against whom Legia, however, won 2:0 after a good game.

Legia Warsaw was drawn in Group E, alongside AZ Alkmaar, Aston Villa and Zrinjski Mostar.