Dundee have signed Ross Harris on a one-year contract after the 21-year-old midfielder was released by Celtic.
Ross Harris is a product of Celtic's youth system
Harris impressed on trial, setting up both goals on Tuesday in a 2-1 friendly victory away to Forfar Athletic.
But former Livingston midfielder Ruairidh Caulfield has left Dundee after failing to win a contract.
Striker Keith Shevlin, previously of the University of North Carolina, has stayed on after the 24-year-old scored twice against Stirling Albion.