The Catalans’ appeal against the rescheduling of this game was rejected but Hansi Flick’s side, unbeaten in 19 matches across all competitions, still made light work of Osasuna, 14th.
Ferran Torres and Dani Olmo netted in the first half with Robert Lewandowski on target after the break.
Barca were without key winger Raphinha as he played for Brazil on Wednesday in South America in World Cup qualifying but cruised at the Olympic stadium regardless.
The match was originally due to be played on March 8 but it was postponed after a Barcelona club doctor died.
Flick put veteran striker Lewandowski on the bench, deploying Torres in his place to excellent effect.
Barcelona controlled the game from the start, taking the lead through Torres after 11 minutes.
Osasuna goalkeeper Sergio Herrera then brought down Olmo to concede a penalty for Barcelona’s second midway through the first half.
Herrera saved Olmo’s spot kick, but a re-take was ordered after an Osasuna player encroached, and this time the playmaker made no mistake.
The second half was a low key affair as Barcelona were content with their lead, until Lewandowski came on for Torres, hungry to get in on the action.
The veteran Polish striker nodded home from Fermin Lopez’s cross at the end of a quick break to extend Barca’s lead and his own at the top of Spain’s scoring charts with 23 league goals. (AFP)
