Kieran Tierney will join Celtic this summer but will not be allowed to leave Arsenal in the January window, STV understands.

Celtic are now eyeing a loan move for an international defender as an alternative to Kieran Tierney should they fail to re-sign the Arsenal defender this month, according to a new report.

Exclusive: Full-back will stay at Emirates in January rather than going on loan to Parkhead ahead of agreed permanent return ...