Napoli face third-placed Milan this weekend and coach Walter Mazzarri is reportedly considering a return to the three-man defence.
It kicks off at San Siro on Sunday at 19.45 GMT.
Mario Rui is suspended, with Victor Osimhen still at the Africa Cup of Nations after Nigeria reached the Final against
the Ivory Coast.
Mathias Olivera is the other choice at left-back and he is still injured,
so this could prompt Mazzarri to shift his tactics
He had switched to a 3-4-3 formation against Fiorentina and Inter in the Supercoppa Italiana, then a 3-5-2 with Lazio in
Serie A.READ MORE
The 2-1 win over Hellas Verona saw a return to 4-3-3, but the absence of left-backs might be enough to prompt another
change of plan.