Arsenal agree deal for Tierney, closing in on Luiz

David Luiz hoping to join Arsenal after sitting out Chelsea training

The deal had looked like it may not go through at one point, with Celtic unwilling to budge on their valuation of the Scotland worldwide and Arsenal trying to squeeze the deal into their summer budget. "And I think they needed to make a statement of intent defensively because they look very exciting going forward".

Tierney came through the ranks at Celtic and has won five titles with the club, whilst he was also named PFA Scotland's Young Player of the Year for three consecutive seasons between 2016 and 2018.

"I'm delighted to be here". At Celtic I was training hard, working hard and just looking to get back fit.

Arsenal have confirmed the signing of Celtic full back Kieran Tierney for a fee thought to be around £25m following a drawn-out transfer saga. Here's everything you need to know about Deadline Day.

Tierney, 22, has been on Arsenal's radar for months now, as manager Unai Emery sought to strengthen the left-back area in his squad.

It's been tough negotiating with Celtic as they refused to budge from their valuation but after seeing two previous offers rejected, Arsenal finally reached an agreement to sign Tierney following fresh talks on Wednesday.

The 32-year-old spent seven years across two spells with the Blues, winning six major trophies, but it is unlikely he will now be remembered fondly by the club's supporters given the manner of his exit and his destination. "He is a well-known player and adds to our defensive strength".

And their defence was further weakened by the departure of club captain Laurent Koscielny to Bordeaux on Tuesday.

Arsenal have already signed Nicolas Pepe, Gabriel Martinelli, Dani Ceballos and William Saliba this summer, with the latter having returned to Saint-Etienne on loan.