Newcastle have appointed Portsmouth assistant manager Kevin Bond as number two to new boss Glenn Roeder.
Bond will link up with the Magpies in time for pre-season training in July, according to BBC Radio Solent.
"It's mixed emotions, having to leave Portsmouth," admitted Bond. "Newcastle have been huge under-achievers and there are great expectation levels.
"That in itself is going to be a pressure, but it is definitely one that I am really looking forward to."
Bond returned to Pompey to rejoin manager Harry Redknapp in January and he says leaving Redknapp will be a hugh wrench.
"Probably the biggest decision that I faced was leaving Harry Redknapp," added Bond.
"Harry has been absolutely fantastic to me over the last six or seven years.