TREVOR CARSON was the hero for St Mirren as the goalkeeper ensured his side remain in the hat for tomorrow's Scottish Cup fifth-round draw.
Neither Dundee nor their Premiership opponents could find the net after 90 minutes and extra-time, and Carson was his side's saviour as he saved all three of Dundee's penalties in the shoot-out.
Here are three things we learned from a cagey encounter in Paisley.
