The Celtic boss was full of praise for his defender.
Southampton, Liverpool, Everton and West Ham United stars all feature.
The German international has joined Anderlecht on loan until the end of the season.
Everton midfielder Stephen Pienaar has been linked with a move to Real Sociedad.
Former Chelsea outcast Kevin De Bruyne has been linked with a transfer to Manchester United.
Fiorentina boss Vincenzo Montella has ruled out the chance of Juan Cuadrado making an imminent move to Chelsea.
Rudolph Austin was superb for Leeds United as they beat Bournemouth.
Celtic's Wakaso Mubarak is currently playing for Ghana at the African Cup of Nations.
Tottenham would be making a big mistake if they sold midfielder Tom Carroll to Swansea City.
Chelsea are said to have struck a deal for Danilo Pantic.