Arsenal were paired against Napoli during the quarter-final draw on Friday.
Napoli could be without three players for the first leg, the Italian club have announced.
Lorenzo Insigne (abductor's muscle), Vlad Chiriches (thigh) and Amadou Diawara (foot) all nursing injuries.
Napoli have released a statement on their injured trio, revealing that Insigne and Chiriches will be out for three weeks, while Diawara will be sidelined for a month.
The first game to be played at the Emirates on Thursday, April 11.