Saints keeper Jak Alnwick revealed he felt sorry for new gaffer Stephen Robinson after “everything went wrong” on his debut in the dugout.
The Buddies number one was powerless to stop Hearts from dishing out a painful defeat in Paisley, taking several hits in the process of making some stunning saves that kept the scoreline down.
Robinson was also helpless on the touchline as Connor Ronan saw red for a rash first half challenge, a decision that hamstrung St Mirren as their unbeaten run came crashing to a halt.