Speaking to El Chiringuito, Barcelona president Joan Laporta said: "Is Ronaldo Koeman in danger if he loses [against Cadiz on Thursday]?"
"At Barcelona, it's not only the results but also the game too. Ronald knows it and I believe he will act like a professional. Is my patience limited? Yes, of course."
Koeman is reportedly a dead man walking at Camp Nou with Barce already looking at potential replacements for the Dutchman, including club legend Xavi.
The 58-year-old refused to answer the media's questions on Wednesday, opting to read a short prepared statement during a pre-Cadiz press conference.