Newcastle today confirmed that Graeme Souness has been appointed manager.
He has been handed the task of following in Sir Bobby Robson's footsteps.
The 51-year-old Scot has been given the St James' Park job after his predecessor was shown the door following a poor run of results.
Souness, who has quit his post at Blackburn to accept United chairman Freddy Shepherd's offer, will take over next Monday, two days after his new club meets his old one in the Barclays Premiership at St James' Park.
"Graeme Souness leaves Blackburn Rovers today to take up the position of team manager of Newcastle United," a club statement said.
"Souness, who has been in talks with Blackburn and Newcastle over the weekend, will take up his new post next Monday, September 13, after a week's 'garden leave', covering Newcastle United's Barclays Premier League match against Blackburn at St James' Park next Saturday.
"Accordingly, a press conference will be held next Monday at St James' Park."
Souness' appointment came as a surprise after days of speculation which has thrown the names of Terry Venables and Steve Bruce to the top of the pile.
The former Liverpool midfielder had been mentioned as a candidates but was thought to be well down the shortlist as David O'Leary and Gordon Strachan were touted.
Venables' revelation yesterday that he had held talks with the Magpies saw his stock rise once again, but Shepherd made his move yesterday to get his man.
Blackburn have confirmed they have reached "a satisfactory level of compensation" with Newcastle after they agreed to an approach from the Tyneside outfit to speak to Souness.
Rovers chief executive John Williams said: "My reading of the situation is quite clear.
"Graeme is very reluctant to leave a job he considers one of the best in the business, but he views Newcastle as a massive opportunity and one he cannot resist. We wish him well for the future and thank him for four successful years.
"But now is the time to look forward and we need to focus all our energies on finding Graeme's successor.
"We have an excellent squad of players and have a lot to offer the new manager, not least a financially stable club, and we expect considerable interest in the position.
"It is time to move on, we know what we are looking for and anticipate a very strong list of applicants."
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