president aurelio de laurentiis has threatened to send his players to a training camp ` for an unlimited period of time .
the elimination came on top of a run of five serie a matches without a win which has seen napoli drop from third place to sixth , leaving them with only a faint chance of qualifying for the champions league next season .
lorenzo insigne reacts as napoli lost 1-0 at home to lazio in the second leg of their coppa italia semi-final on wednesday , going down 2-1 on aggregate .