Kieran Tierney is travelling to Arsenal to have his medical ahead of a £25m move from Celtic, while Chelsea defender David Luiz looks set to follow suit in a shock move ahead of the transfer deadline at 5pm on Thursday.
Unai Emery has been on the hunt for defensive reinforcements this summer, with left back and central defence a position of real importance to the Gunners boss, with the Spaniard having his eye on Tierney in particular throughout the window.
Arsenal have already seen two bids knocked back by the Scottish champions for the full back, with the Hoops unhappy with the structuring of the deal.