Brazilian striker Pato is ready to stay at Chelsea but new manager Antonio Conte is yet to make contact, agent Gilmar Veloz said.
The 26-year-old struggled for fitness since joining the Blues from Corinthians on loan during last winter's transfer window.
He made his debut for the club on the first week of April against Aston Villa, scoring from the penalty spot.
"Chelsea has not given the player, me, or anyone any information regarding Pato's future," Veloz told Goal.com.
"We received the news that Mr. Conte was revising the players in the squad, however, he did not contact Pato or me to talk about his future as well.
"For now, Pato's future is still in the open, Chelsea has the option to buy, but if they don't then we will begin looking for other clubs.
"As of the moment, we must first wait to hear the club's decision."