Holders St Mirren start with win as Linlithgow cause shock

Holders St Mirren started the defence of the Premier Sports Cup with a comfortable 4-0 win over Dumbarton as second-tier Greenock Morton suffered a shock defeat at home to Lowland League champions Linlithgow Rose.Scottish Cup finalists Dunfermline Athletic were also humbled by third-tier East Kilbride.Dundee came from behind against Airdrieonians to avoid a shock home defeat by the League 1 side, while Premiership rivals Falkirk thumped Edinburgh City.Dundee United needed a stoppage-time penalty