Lionel Messi scored twice as Barcelona extended their La Liga lead with a thumping win over bottom side Osasuna.
The defending champions are now three points clear of Real Madrid, who have played two games fewer and face Deportivo la Coruna later on Wednesday.
Messi's 501st Barca goal opened the scoring, before Andre Gomes smashed in.
Roberto Torres gave the away side hope, but further strikes by Gomes and Messi, two from Paco Alcacer and Javier Mascherano's first Barca goal followed.
After Messi's 12th-minute opener, fans held up their shirts as they mirrored the Argentine's celebration of a 93rd-minute winner - his 500th goal for Barca - at Madrid on Sunday.
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