The Dutchman feels Chelsea would be making a mistake selling the Brazilian international.
It was reported by the Daily Mail that Liverpool and Juventus were keen on the player, who has been struggling for form in recent weeks.
Liverpool would of course love to add him to their arsenal, but one man who does not think Chelsea should sell him is a player who has played for both teams.
Bolo Zenden played for Chelsea between 2001 and 2004, and Liverpool between 2005 and 2007. He therefore knows about playing for both clubs.
But simply put Zenden, who worked with Oscar when interim assistant to Rafa Benitez, doesn't think Chelsea would be wise to sell him at all.
"I obviously worked with Oscar and I think he is a great player.
"He can put a shift in. He runs a lot he works hard. He is a fantastic player, scores his goals, sets up his team-mates.
"I wouldn't sell him."
Chelsea have proven recently that they are not afraid to sell big name players if the price is right. Kevin De Bruyne, Romelu Lukaku and Juan Mata have all recently departed for fresh pastures after their time at Chelsea seemed to come to an end.
Zenden is one man hoping that is not the case for Oscar.