Celtic already have Andreas Hinkel and Mark Wilson as cover at right-back, but Lennon has been suitably impressed by the player who has 50 international caps.

BBC: South Korea defender Cha Du-Ri seals Celtic switch

Andreas Hinkel and Mark Wilson are out of contract at the end of the season and manager Neil Lennon has moved to increase his options at full-back.

BBC: Cardiff full-back Matthews signs pre-contract at Celtic