They just mentioned on Sportsound that they spoke to one of the officials for an "explanation", and they confirmed the five mins was added on for the treatment of blood injuries, and also for timewasting throughout the second half, the one example they gave was the Hearts goalie taking an age to retrieve the ball etc. The official also said it could easily have been 7 mins added on. It's the same whinging that goes on whenever we score late. The score was tied at 90 mins and the extra five was there for BOTH sides to do something with. Stfu bitter tims.