The Spain international completed a move to Barcelona from RB Leipzig on Friday, and having trained alongside his teammates on Saturday, Olmo is in line to make his first appearance for the Catalan outfit in this contest.
Olmo could feature alongside Robert Lewandowski and Raphinha in the final third of the field, while Ilkay Gundogan and Andreas Christensen are expected to operate in midfield.
Fermin Lopez, Eric Garcia and Pau Cubarsi helped Spain win Olympic gold on Friday, and the trio will therefore not be involved in this match.
However, both Lamine Yamal and Ferran Torres, who helped Spain win Euro 2024, are now available for selection and are expected to be involved in the second half of this contest.
Head coach Hansi Flick will make changes from the side that started against AC Milan last time out, with Jules Kounde and Inigo Martinez likely to be introduced into the side.
Alejandro Balde is also fit after a long-term hamstring issue, and the Spain international could be given the nod at left-back in Barcelona's final match before the start of the new La Liga campaign.
Marc Casado, meanwhile, is in line for a spot in the middle of midfield, as Gavi, Pedri and Frenkie de Jong are all on the sidelines through injury.
Barcelona possible starting lineup: Ter Stegen; Kounde, I Martinez, Lenglet, Balde; Casado, Gundogan, Christensen; OImo, Lewandowski, Raphinha