Barcelona's player Lionel Messi (Photo: Reuters)
Messi’s pair of goals in a 3-0 victory over Racing Santander on Saturday took the Argentina striker’s season tally to 16 and kept the Spanish champions top of the league.
The defending European champions face the first of back-to-back games against Plzen starting at the Camp Nou on Wednesday.
Barcelona and AC Milan share four points in Group H, with the Italian champions beginning a double-header against Belarusian side BATE Borisov.
Barcelona defender Eric Abidal says “these are two important games. We know that if we can reach 10 points we are practically in the next round.”