Celtic have confirmed they have agreed a pre-contract deal to sign Cardiff defender Adam Matthews.
Matthews will join the Scottish giants on a four-year deal in July after his contract at Cardiff expires.
The highly-rated 19-year-old has been linked with a move to Celtic for some time, with Bhoys boss Neil Lennon a big admirer of the full-back.
Matthews has found himself frozen out of things at Cardiff this season, with the Welsh club due compensation for his signature.
A club statement read: "Celtic are delighted to announce that they have signed defender Adam Matthews on a pre-contract agreement.
"The 19-year-old, who currently plays for Cardiff City, is one of the most exciting young prospects in the Championship, and it is a real coup for the club to have secured his signing.
"Matthews, a Wales Under 21 international, will join the Hoops on 1st July on a four-year contract, and will link up with his former Cardiff City team-mate and fellow Welshman, Joe Ledley, who has proved to be a great signing for the club already this season."
Matthews is the second player to agree a pre-contract at Celtic for next season after securing a deal for Nottingham Forest centre-half Kelvin Wilson.