The 23-year-old has enjoyed a pleasant campaign with the Yellow Submarine, who are fourth in la Liga and take on Sevilla this weekend as they continue their quest to finish the season with access to the Champions League.
However, a number of clubs including Juventus and Napoli have been linked with the Italy international, who has scored 16 goals in 30 games for his side.
“Rossi is focusing on finishing the championship with Villarreal and then we will evaluate the situation, and it is not excluded that he will return to Italy,” Pastorello told Radio CRC.
“But the cost of his transfer fee and the level of his wages seem like they will prohibit Italian sides.”
Spanish giants Barcelona have also been speculatively named as one of the clubs after Rossi.
“Rumors like the Barcelona ones are always nice, but Rossi’s market is still evolving,” the agent concluded.

Villarreal signed the New Jersey-bound striker from Manchester United in 2007 after spells on loan at Newcastle United and Parma.
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Agent: Villarreal’s Giuseppe Rossi Could Return To Serie A