Napoli plan to increase Higuain's buy-out clause to keep him at San Paolo.
Messi says he is looking forward to playing with Higuain at the Nou Camp.
Both talents return to Barcelona after seasons on loan at Everton and Celta Vigo respectively.
IBTimes UK's writers attempt to predict what will happen in Brazil.
The World Cup will be a chance for the world's best to take it up a notch
Argentina have their best chance of winning World Cup since 1986 Maradona side.
Ronaldo edges out Barcelona rivals Lionel Messi and Gerard Pique.
Sturridge has scored 21 Premier League goals this season.
New Barca coach says he hopes Messi will 'find the best of himself' under new regime.
Bloomberg study shows Liverpool striker is Europe's most influential player
Luis Enrique has refused to confirm Fabegras and Mascherano will stay at Barcelona
Messi claims he will look for a solution should Barcelona want to sell him.
Messi's net salary will go up from €13m to approximately €20m.
Cristiano Ronaldo heads Forbes football top-10 rich list after earning $73 million (£43m) in 2013.
Arsenal Plan To Take Advantage Of Barcelona Summer Overhaul To Sing Unsettle Duo – Report
Pele says Messi is a great player but can't understand why he is better for Barca than for Argentina.
The Argentinian has claimed that "lot of nonsense" about him has been said.
Leo Messi has reportedly asked Barcelona to bolster the squad with his friend.
Januzaj signed a five year contract at Old Trafford last October.
Messi's new contract is expected to be worth more than £16m per season.
David Moyes wanted Portuguese back as centrepiece signing of his rebuilding plans
Verona admit they cannot ensure that Juan Iturbe will stay at the Serie A club.