Sharjah24 - AFP: Osasuna shattered La Liga leaders Barcelona's perfect start to the season with an emphatic 4-2 victory on Saturday.
The Catalans won all seven of their opening fixtures but Hansi Flick's rotated side came badly undone in Pamplona as Ante Budimir scored a brace either side of Bryan Zaragoza's strike.
Pau Victor had given Barca a lifeline to pull them back into the game before Budimir bagged his second from the penalty spot.
Abel Bretones added a sensational fourth from the edge of the box, before Lamine Yamal pulled one back with a fine effort of his own.
Victory would have matched Barcelona's best ever start to a league campaign with eight consecutive wins, but they were not able to build on their four-point lead on second-place Real Madrid.
The Spanish champions visit Atletico Madrid, third, in a derby clash on Sunday.
"It's normal there are rotations, there are a lot of games, it's not an excuse," Barcelona midfielder Pedri told Movistar.
"In the second half we deserved a bit more but we let in goals when we were at our best."
Ahead of a Champions League match against Young Boys on Tuesday, Flick shuffled his pack.
The coach handed starts to defenders Gerard Martin and Sergi Dominguez as well as Pablo Torre in midfield and Victor in attack.
The coach rested Spain Euro 2024 starlet Yamal and Brazilian winger Raphinha among other regular picks.
As a result Barcelona failed to ignite in the first half and Osasuna winger Zaragoza took centre-stage.
Last season Zaragoza struck twice while playing for Granada in a 2-2 draw against Barca, a performance which helped earn him a move to Bayern Munich.