Puelles made his official competitive debut for the club's first team on 14 April 1901, starting in the last match of the first edition of the Copa Macaya, which would decide the winner of the tournament between FC Barcelona and Hispania AC, with the latter only needing a draw to win it, which they did after holding Barça to a 1–1 draw.
When Barcelona participated in the very first national tournament played in Spain, the 1902 Copa de la Coronación, the club struggled with organizing the trip to Madrid since not all of its first team players could go, so they had to include members of the second team such as Josep Llobet, Alfonso Albéniz, and Puelles, who thus joined the likes of Joan Gamper, John Parsons, the Morris brothers (Samuel, Enrique and Miguel), and Udo Steinberg as a member of the Barça team who went to Madrid.
[5][6] He appears in the official report under his mother's name, Luis Pàmies, which years later caused some confusion among Barcelona and football historians.
[8] At the start of the 1902–03 season, Barcelona was lacking multiple first-team players for unclear reasons, so they had to include members of the second team such as Alberto Almasqué, Llobet, and Puelles, with each of them playing in all five matches held in November 1902, including in the opening match of the 1902–03 Copa Macaya on 30 November against Hispania AC.
With the return of the missing first-team players, the role of Almasqué, Llobet, and Puelles was once again reduced to sporadic appearances, mostly in friendly matches.