Gunners battle Napoli in bid for Tierney
Arsenal will face increased competition from Napoli this week in the race to sign Celtic full-back Kieran Tierney. The Italians are set to sell Mario Rui, their current left-back, which would create space in the squad and raise funds as they prepare to bid for the 22-year-old.
Arsenal made a £15 million offer for Tierney earlier in the transfer window, but have yet to come close to Celtic's asking price of £25m and the heightened interest from Napoli could lead to a bidding war.
Celtic are understood to be willing to allow Tierney to leave, provided they receive a fee they believe to be acceptable for a player who has captained Scotland. Allan Preston, who represents Tierney, said this weekend that the left-back's future was dependent on Celtic.
"If they get a price that they believe is the correct value he could possibly be on his way," Preston said.
"It will be up to the clubs involved, Arsenal, Napoli or whoever, to then put the money on the table."
Celtic last week signed left-back Boli Bolingoli-Mbombo from Rapid Vienna for around £3m.
Arsenal remain in discussions with St-Etienne over defender William Saliba, who is expected to cost around £25m. The French side are insisting Saliba (18), returns to them on loan next season.