Scotland defender Kieran Tierney has completed his planned return to Celtic, signing a five-year contract after leaving Arsenal.
The 28-year-old left-back departed Glasgow for the north London club in a £25m deal in 2019 and made 144 appearances, scoring six times, including one in his final game.
Prior to that, he played 170 times for Celtic, netting eight times, and later made 26 appearances on loan to Real Sociedad from Arsenal. He won his 50th Scotland cap in Friday's home loss to Iceland and has one international goal.
"My ambition is just for Celtic to be as successful as possible, retain our place at the top and continue to win trophies and do well for Celtic," he told the club website.
"Everybody's known for a few months and just to be here with the Celtic strip on again just feels amazing.
"When you move away from home, you grow up, you learn different things. I was in Spain for a year, learning a different language and playing in a different league, so I'm definitely a different person.
"Player-wise, it's the same as I always say - I'll try and work my hardest, I'll do my best for the club and that's all I can do."
Tierney had gone on loan to Sociedad after falling out of favour under Mikel Arteta amid injury problems and failed to become a regular starter on his return, and all but four of his 20 appearances this season were as a substitute.
