Read the following context and answer the question.
Context: He seemed to go over the line a few inches , with the ball in his hands , and then he tossed it up and it went behind . The Hearts umpire gave a corner , but the Celtic official claimed a goal , and the referee allowed it . This was the signal for a great uproar on the grand stand by the supporters of the Hearts .
Question: Why are Celtic 's supporters so emotional ?
Answer:


They got a goal .