Datasport says the Gunners have offered â‚¬6m to bring Marchetti to the Emirates Stadium.
Cagliari are holding out for â‚¬9m, but could be convinced to lower their expectations a little further.
â€śHe expressed his desire to leave through the media,â€ť read a statement on the official Cagliari website yesterday.
â€śThe club will do everything to make him happy, so if Marchetti does leave Cagliari, then our first choice will be Michael Agazzi.
â€śCagliari are not looking for a different first choice goalkeeper.â€ť