Robert Lewandowski scored his first Barcelona goal in a 6-0 rout of Mexican side Pumas in the Joan Gamper Trophy pre-season clash on Sunday.
On his Camp Nou bow, the Polish international, who switched from Bayern Munich in the summer, scored after three minutes from a particularly tight angle.
Pedri added the second and fourth goals in the fifth and 19th minutes, sandwiching a strike from Ousmane Dembele.
Pierre-Emerick Aubameyang and Frenkie de Jong completed the rout in the second half.
Lewandowski also played a key part in Pedri's second goal with an inspired pass to set up the midfielder.
Barcelona begin their La Liga season at home to Rayo Vallecano on Saturday.
Giggs goes on trial for assault
Former Manchester United star Ryan Giggs stands trial Monday on charges of attacking and coercively controlling his ex-girlfriend, in a case that has upended his managerial career.
The 48-year-old, who until recently served as coach of the Wales national team, has pleaded not guilty to the charges, which carry a maximum jail term of five years.
The jury trial at a crown court in Manchester was set to open at 10:30 am (0930 GMT), presided over by judge Hilary Manley. It is expected to last 10 days.