Gary Mackay-Steven was the matchwinner as Celtic beat Real Sociedad 1-0 in a pre-season friendly on Friday night.
The former Dundee United player struck midway through the second half as Ronny Deila's side overcame David Moyes's men at St Mirren Park.
Elsewhere this evening, Dundee United went down 4-0 to Vitesse Arnhem and Montrose were beaten 3-1 by Cove Rangers at Links Park.
