The champions win it late! 🚨 Luke McCowan's deflected effort in the 87th minute squeezes into the bottom corner. ⚽️➡️🥅 Celtic's pressure finally pays off. 😮‍💨 FT: 🟢⚪️Celtic 1-0 St Mirren ⚫️⚪️ #BBCFootball #SPFL #CELSTM t.co/xxoQqY6fCI