Transfer gossip: Pogba, Haaland, Martinez, Rudiger, Calhanoglu, Bakayoko

Manchester United and France midfielder Paul Pogba says he is currently going through the most difficult spell of his career due to concerns over his playing time at Old Trafford. (RTL via Goal)

City are contemplating a £100m double move for Aston Villa midfielders Jack Grealish, 25, and Douglas Luiz, 22. City sold Brazil's Luiz to Villa last year but could activate his buyback clause. (Star)

Belgium midfielder Kevin de Bruyne, 29, says he is in talks with Manchester City over a new deal but discussions are "not advanced". (VTM Nieuws, via Guardian)

Chelsea have already agreed a deal in principle to sell French midfielder Tiemoue Bakayoko, 26, to Napoli when his loan move finishes at the end of the season. (Gazetta Dello Sport, via Teamtalk)

AC Milan's Turkish midfielder Hakan Calhanoglu, 26, could be on his way to Atletico Madrid after contract talks with the Italian club hit a problem, although Manchester United remain interested. (Mundo Deportivo)

Chelsea's German defender Antonio Rudiger, 27, is keen on joining Barcelona in the January transfer window after falling out of favour at Stamford Bridge. (Sport, via Metro)

Liverpool's sporting director Michael Edwards reportedly decided against making a move for Napoli's 29-year-old Senegalese defender Kalidou Koulibaly this summer because of his asking price. (Star)

Former RB Leipzig coach Ralf Rangnick believes French centre-back Dayot Upamecano, 22, who is a transfer target for Liverpool, would be a success at Bayern Munich. (Goal)

Juventus are ready to make a move for Ajax youngster Ryan Gravenberch but they face competition from Barcelona for the signature of the 18-year-old midfielder. (Tuttosport - in Italian)

Juventus are also in talks with Wolves over a move for Portugal winger Pedro Neto, 20. (Tuttosport, via Mail)

Former Aston Villa striker Kevin Phillips believes manager Dean Smith should persuade Chelsea's on-loan English midfielder Ross Barkley, 26, to sign for the club on a permanent deal. (Birmingham Mail)

Former Chelsea and England centre-back John Terry - currently assistant head coach at Aston Villa - could be an option for the vacant manager's job at Derby after Phillip Cocu's departure. (Mail)

Former Manchester United and England midfielder Paul Scholes says he considered a move to Everton after deciding to come out of retirement in 2012. (DAZN, via Metro)

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