With Sollbauer, Andersen, Halme and Diaby all at centre back I don't think a 5th is a position we need extra numbers in unless someone leaves.
I don’t count Bambo (fiasco) and I don’t think GS is a big fan of Halme too considering the fact that Williams is starting in front of him.
Plenty of pace but technically weak,hope he’s been working hard on his football skills while he’s had this break.