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Last Updated: 28/11/15 2:43pm
Jason Holt (centre) is congratulated by Martyn Waghorn and Kenny Miller (right) after opening the scoring for Rangers against St Mirren
Rangers booked a Petrofac Training Cup final date with Peterhead on April 10 after a dominant 4-0 semi-final success over shot-shy St Mirren at Ibrox.
The visitors had not won in five games and in…