Celtic youth goalkeeper Aidan McAdams has left the club to join their bitter rivals Rangers.
The 18-year-old has signed a three-year contract at Ibrox in a deal that could cost up to £150,000.
"We are pleased to secure Aidan and welcome him to the club," Rangers academy head Craig Mulholland told the club's website.
"He had a number of options including remaining at his own club and two good options in England, but the quality of goalkeeping provision our academy goalkeeping coach Colin Stewart and his team of staff at the club offer was attractive to Aidan and was a big factor in his decision to join Rangers."
McAdams has earned plaudits for his performances for Scotland at youth level, playing starring roles in last season's U17 Euros and the Victory Shield the season before.