Arsenal coach Mikel Arteta already has in mind the possible formations of his team, after the injury of Jurrien Timber.
Arsenal confirmed on Wednesday that Timber suffered an anterior cruci ate ligament injury in his right knee.
The Dutchman, who has just been transferred from Ajax, could miss the whole season as his injury is serious.
Having proved his versatility, starting at left-back against Nottingham Forest with Thomas Partey at the other end, Arteta faces a selection dilemma against Crystal Palace.
However, the Spanish coach already has Timber’s potential replacements in mind and three ways his team can play in the upcoming matches.
Ben White (RB) Zinchenko (LB)
Partey (RB) Tomiyasu (LB)
Ben White (RB) Tierney (LB)