Neymar jetted to Barcelona with a Spanish model after he sat out of Paris Saint-Germain's win over Brest.
The striker, 27, has been out of action since he hobbled off during Brazil's friendly draw with Nigeria last month.
Local media report that Neymar watched the 2-1 win before he boarded a plane to the Spanish city.
He reportedly went to Barcelona to attend Brazil team-mate Arthur Melo's party on Saturday.
And he fuelled speculation that he could be dating Spanish stunner Noa Saez as they posed for pictures together.
The pair were snapped together at popular hotspot Mr.Porter - where Neymar regularly visited when he played for Barcelona.
Saez is reportedly from the southern Spanish coastal city of Malaga, but has lived in Catalonia for some time.
She regularly bombards her 25,000 Instagram followers with saucy bikini selfies and pictures of her travels around the world.
Neymar has been linked to a number of ladies since his high-profile split with Bruno Marquezine in 2018.
He was rumoured to be dating stunning Brazilian bikini model Mari Tavares at the start of the year.
And he reportedly had a steamy hotel fling with Swiss beauty Liza Brito after they bonded over their love for tattoos.
Despite jetting back to Barcelona this weekend, Neymar's dad has quashed any speculation that his son will return to the Nou Camp.