The meeting, which took place in Pamplona, ended with a score of 2: 0 in favor of the guests.
The victory for Barcelona was brought by the goals of Jordi Alba and Elias Moriba, who distinguished themselves in the 30th and 83rd minutes with the transfers of Lionel Messi.
Barcelona extended their unbeaten streak in Example to 16 matches and are second in the standings with 56 points.
Osasuna with 28 points is 13th.
In other matches of the day, Valladolid beat Getafe (2: 1), Elche beat Sevilla (2: 1), and Cadiz defeated Eibar (1: 0).
Earlier it was reported that Valencia, without Cheryshev in stoppage time, snatched a victory in the match between Examples and Villarreal.