The defender suffered an injury to his knee during a training session on Wednesday and he will now miss the end of season run as the Light Blues bid to win a domestic Treble.
The 25-year-old has been a go-to at the back for Brendan Rodgers this season, making 40 appearances for the club. Scales initially joined the Hoops from Shamrock Rovers in August 2021.
Ava Nelson passed away peacefully on Tuesday, April 16, after battling a highly aggressive glioblastoma tumour. Now, Old Firm fans have been asked to put their rivalry aside in tribute.