Kieran Tierney is in London undergoing a medical with Arsenal ahead of a move from Celtic.
Arsenal agreed a fee with Celtic on Wednesday for the Scotland international left-back.
The 22-year-old, who has won five Scottish Premiership titles, made 40 appearances in all competitions for the Hoops during the 2018/19 campaign.
If Arsenal are able to complete the deal for Tierney, he would be Unai Emery's fifth signing of the summer window.
Tierney signing 'a statement of intent'
Former Arsenal striker Charlie Nicholas thinks Kieran Tierney's arrival at the Emirates would be a statement of intent by the Gunners.
"As a Celtic and Arsenal fan, I'm happy Arsenal have identified they need a stronger left back," the Scot told Sky Sports News. "Tierney has improved a lot, he'd be better than what Arsenal currently have. I think it's a high price, he's been a treble-treble winner and it's been an awkward situation for him, but I think the time is right for him to move on.
"Celtic fans might ask why he doesn't stay for nine in a row. That's not guaranteed, neither is 10. Going to a big club like Arsenal, in the Premier League, you can't guarantee trophies, but they are signing a very good left back who can get better. And I think they needed to make a statement of intent defensively because they look very exciting going forward."
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