Manchester United boss Louis van Gaal has said that Darren Fletcher's proposed move to West Ham is off.
Hull boss Steve Bruce says his side's 3-0 defeat to Newcastle may have jeopardised his chances of strengthening his squad.
On Thursday, Galliani was quizzed about Carlos Tevez's move to Juventus by reporters and was also asked about Balotelli's future at the club.
Galliani responded: "Balotelli will not be sold. He's absolutely not on the market.
"We count on him. He's a world star and we will build our future around him."
Milan signed Balotelli from Manchester City for £19million in January.