Ex-Newcastle chairman Shepherd: Vultures circling for Cisse
The Senegal striker has been in amazing form since his January arrival from Freiburg.
"All the vultures will be circling around Cisse in the summer trying to get him away from Newcastle," Shepherd told talkSPORT.
"It's impossible if they want to go, it's no good keeping them. I think there may be an offer Newcastle can't refuse for Cisse coming in."