Arsenal are close to confirming their fourth senior signing of the summer in Lille forward Nicolas Pepe and a fifth capture could follow the Ivorian's move.
Kieran Tierney has been on the agenda for the Gunners all summer, and while Celtic have rebuffed bids by the north London club the Scott is expected to complete a move before deadline day.
The Bhoys are through to the third qualifying round of the Champions League after securing victories at home and away against Nomme Kalju.
Neil Lennon's side will face Romanian side Cluj to win the right to enter the group stage of the competition, and according to Scottish Daily Mail an agreement between Arsenal and Celtic is set to be confirmed ahead of the first leg of the tie on August 7.
Pepe is to be confirmed as the new club record signing for the Gunners following the arrivals of Brazilian youngster Gabriel Martinelli, Dani Ceballos on loan from Real Madrid and Saint-Etienne defender William Saliba.
The Frenchman will not be available to play until next season however after he was loaned back to Les Verts until the 2020/21 campaign.
With Nacho Monreal nearing the end of his playing career at the age of 33, and Sead Kolasinac having proven to be effective as an auxiliary on the over lap than a defender at full-back, Tierney has been identified as an important signing to add security to Arsenal's back four.
Still only 22, he is regarded as a natural leader and a well-balanced footballer in his position, capable of keeping opponents quiet down his flank while providing a threat going forward.
