Sam Wardrop has agreed to a two-year deal with Dundee United.
The defender captained Celtic to the 2017 SFA Youth Cup victory over Rangers at Hampden and had a season-long loan spell at Dumbarton this past campaign.
Wardrop played 27 games at Dumbarton before sustaining an injury in March but he had performed well enough to have convinced United to bring him Tannadice.
Speaking to the United website Csaba Laszlo said: “Sam is an athletic and energetic defender who likes to get forward and attack the opposition. I am pleased that we have secured his signing.
“We must build a squad capable of winning the Ladbrokes Championship, and he will be an important part of the squad next season.”
United already have several former Celtic players in their squad including James Keatings, Paul McMullan and Lewis Toshney.
After enduring two seasons in the second division of the Scottish game, the pressure will be on United to earn promotion back to the first division.
With Ross County and Partick Thistle moving down a division, the Championship will be very competitive with clubs like Falkirk, Dunfermline and Inverness Caley Thistle all nurturing hopes of getting promoted.