Traore started last weekend's 4-2 win over Atletico Madrid after his return to the club on loan, while Aubameyang made his debut for the Catalan outfit off the bench in the second half.
Fellow mid-season arrival Torres will seemingly be used as a centre-forward this season, and according to Marca, Xavi could start all three against Espanyol.
The report claims that Memphis Depay will again be unavailable for selection this weekend through injury, while Ousmane Dembele is unlikely to be considered for a start due to the uncertainty surrounding his future.
Barcelona are unbeaten in their last seven league matches, which has helped them move into fourth spot in the table, just two points behind third-placed Real Betis. body check tags ::