Demba Ba's contract is hanging over us, says Newcastle manager Alan Pardew The club's top scorer took his tally this season to 10 after finding the net twice in the 3-0 win over Wigan, in the process ending a damaging four-game losing run. Talks are on-going to re-negotiate the Senegal forward's deal, under which he is able to leave if a rival club bids more than £7 million, with the player's representatives pushing for a significant increase on his current wages of £50,000 a week. Pardew is unhappy that details of negotiations have been made public. He said: "We've had to board our training ground up because our team's been leaked, and details of Demba's contract have also been leaked since I've been here and that's not acceptable. He still has a clause in his contract and it's hanging over us. We've tried to negotiate it away but haven't managed yet, but he's never done anything other than look me in the eye and show me he wants to stay here. He loves it here, and he understands it's a football city. We're trying to do a deal to take the clause out because it makes it difficult for me, for Demba and the club. Ba was instrumental in victory over a Wigan side that failed to recovered from an early red card for Maynor Figueroa. Wigan manager Roberto Martínez said: "It was a harsh and key decision, because within the space of 10 minutes we went two goals down. We were looking a real threat and the decision is key. The ball is a divided one and Maynor is allowed to challenge for it, so it was a strong punishment. He's distraught in the dressing room afterwards. It's difficult to see how a striker is going to score if the ball is divided between two players. For me, it's shoulder to shoulder and we'll look into if we can appeal the red card. It's a decision that really changes the dynamic of the game. The sending-off is a double punishment and so important in the context of the game.