Champions Barcelona completed a perfect LaLiga season on home soil with a 3-1 win over Real Betis, achieving a 100% record at the Nou Camp.
The Brazil winger opened the scoring with a free-kick just short of the half-hour mark and punished a defensive error from Héctor Bellerín midway through the second half.
Isco created some intrigue when he converted a penalty heading into the final 20 minutes, but Joao Cancelo's sweetly-struck effort made things safe.
It was a memorable farewell for Robert Lewandowski at the stadium, as Hansi Flick's side became the first team to record a flawless slate of 19 home wins in a 20-team campaign.