Kieran Tierney has rejoined Celtic after six years with Premier League side Arsenal.
The Scotland international had agreed a pre-contract deal to return to Glasgow upon the expiration of his deal with the Gunners.
Tierney, 28, won five league titles with Celtic before heading to England in 2019.
He lifted the FA Cup with the Gunners in 2020.
Tierney returns to play under Brendan Rodgers, who managed the defender during his first spell at the club.