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- This is the third time in four seasons Celtic and St Mirren have met in the Scottish Cup. Celtic have won the past four meetings between the clubs in this competition.
- St Mirren's last Scottish Cup win over Celtic was in the 2009 quarter-finals when Billy Mehmet's penalty gave them a 1-0 win in Paisley.
- This weekend is the Buddies' first Scottish Cup semi-final meeting since 1984, when Celtic won 2-1 before going on to lose to Aberdeen in the final.
- St Mirren's 3-1 victory over Celtic in the League Cup final this season was one of only three wins for the Paisley side in the past 36 meetings across all competitions.
- Celtic, who have contested 61 of the 139 Scottish Cup finals, are aiming to win the trophy for the 43rd time, which would be nine more than the next best, Rangers.
- Before last season's defeat by Aberdeen, Celtic had won 11 successive Scottish Cup final appearances since Rangers beat them in the 2002 showpiece.
- Martin O'Neill won the Scottish Cup three times – 2001, 2004 and 2005 – in his five-year spell as Celtic manager. His last game in that tenure was the 2005 final over Dundee United in 2005, when Alan Thompson scored the only goal – it came the week after 'Helicopter Sunday', when they were beaten 2-1 late on by Motherwell to cost them the title on the final day.
- St Mirren are attempting to reach a seventh Scottish Cup final and are three-time winners, most recently in 1987, when Ian Ferguson's goal beat Dundee United 1-0 in extra time – it was the last time in a Scottish Cup final when all the players and both managers were Scottish.
