Arsenal ‘Optimistic’ Over Kieran Tierney Deal With Revised Bid Expected as Celtic Seek £25m

�Arsenal remain ‘optimistic’ that a deal will be struck with Celtic to sign Kieran Tierney, despite their opening offer of £15m being knocked back by the Scottish champions. Unai Emery has made defensive reinforcements his primary target this summer, with the left back position one such area after a below-par season from Sead Kolasinac, while Nacho Monreal turned 33 years old earlier this year...