Sky Sports journalist Kaveh Solhekol has revealed the reason behind the latest failed bid from Arsenal for Celtic defender Kieran Tierney.
According to him, Arsenal recently failed with a £25m bid for the player despite the fact that it matched the asking price from Scottish champions Celtic.
The Sky Sports media personnel said that Celtic were unhappy with the add-ons accompanied with the deal.
Earlier reports had said that the North London giants made an initial bid of £18m plus £7m in add-ons thus totaling £25m.
Arsenal were denied with the latest bid as Celtic were not convinced by the condition attached to the add-ons which are centered on qualification for Champions League.
Gunners boss Unai Emery has identified the left-back position as the area to be strengthened ahead of the new season and Kieran Tierney is his top transfer target for the position.
The Scottish international player is presently out of action with a hernia injury but Unai Emery is still bent on signing him for Arsenal this summer.
The Gunners had earlier made two separate bids of £15m and £18m until the latest bid made earlier this month.
Arsenal have signed just one player this season after young Brazilian attacker Gabriel Martinelli was officially announced as a Gunner in the penultimate week.