Asked about the speculation, Rijkaard said of the former Chelsea manager: "I value him as a coach."
On Lionel Messi's latest thigh injury, Rijkaard also said: "My preoccupation is the health of the player. He must recover and later we'll analyze how we can avoid such situations being repeated.
"We must make sure the player knows his body at the moments when it can be dangerous. We must always watch him."