Newcastle may have a battle on their hands to keep centre forward Papiss Cisse after Manchester United were linked with the player who scored 13 Premier League goals in just 14 games.
The Daily Mirror has reported that both Manchester United and Manchester City are believed to be interested in the striker who was signed for just £10million in January.
While Manchester City already have a number of striker on their books, United have already allowed Michael Owen to leave and there have been suggestions Dimitar Berbatov could also be on the move.
United do have Wayne Rooney, Javier Hernandez and Danny Welbeck, but in the past they have always had at least four strikers capable of regularly playing in the first team.
Newcastle enjoyed a superb but there is a worry that there will be offers for a number of the players that helped Alan Pardew's side qualify for the Europa League.
Fellow Senegal striker Demba Ba has a £7million buy-out clause in his contract and after scoring 16 league goals, there is bound to be some interest in the former West Ham man.
Newcastle previously sold star striker Andy Carroll when Liverpool made an offer that was too good to turn down and Pardew has stated that he would be difficult to stop his top players leaving for a club like Manchester United.
“If Yohan Cabaye gets a call from Manchester United and they tell him he is going to be the next Paul Scholes I am not going to be able to stop him," declared Pardew.