Market players: Sancho, Pochettino, Alli, Eriksen, Christie, Ozil, Modric Ramos

Manchester United are set to sign 20-year-old England international Jadon Sancho from Dortmund for less than fan 100m this year.

Arsenal have joined the race to sign 25-year-old Ryan Christie from Celtic and are hoping former team-mate Kieran Tierney can lure him back to the Emirates to play.

Arsenal boss Mikel Arteta, meanwhile, is unsure whether Mesut Ozil will return to the senior squad. Ozil has not played a single game this season. Real Madrid coach Zinedine Zidane has denied reports that Luka Modric, 35, Sergio Ramos, 34, and Lucas Vazquez, 29, will leave the club.

New PSG boss Mauricio Pochettino has been linked with former Tottenham players Dele Alli, 24, and Christian Eriksen, 28, who is currently with Inter Milan. Tottenham boss Jose Mourinho said it was "surprising" to see them sign a player in January and would not ask club president Daniel Levy to buy him a new player. Borussia Dortmund want 18-year-old Manchester City winger Jayden Braaf