Arsenal sign Tierney

Arsenal have strengthened their options in defense with the addition of Kieran Tierney at left-back.

Arsenal have completed the signing of left-back Kieran Tierney from Celtic for a reported £25m, which is a record transfer fee received by a Scottish club.

A club statement read: "Scottish international Kieran Tierney has joined us from Celtic on a long-term deal.

The 22-year-old was born in the Isle of Man and had been with his boyhood club since the age of seven. He made 170 appearances for Celtic and has played 12 times for Scotland.

The defender completed a medical at London Colney on Thursday and will immediately join-up with his new team mates. He will wear the No 3 shirt.

Unai Emery said: “We’re delighted Kieran is joining us. He’s a very talented player who will continue to improve. He increases our options defensively and I look forward to him joining our group.”

The deal is subject to the completion of regulatory processes."