St Mirren following a Covid outbreak. The Premier Sports Cup group opener has been awarded to the Buddies as a 3-0 victory after a positive test in the Sons' ranks.
The game is the second to be axed so far in the competition with Forfar being handed a 3-0 win over Ross County after football operations were suspended at the Staggies amid a virus scare.
A statement from the Paisley club read: " Dumbarton informed the SPFL that a player had tested positive for COVID-19 and, as a result of close contacts and player injuries, they do not have sufficient players available to fulfil the fixture.