Based on the context and the answer, generate a 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 .

Answer:

They got a goal .



Why are Celtic 's supporters so emotional ?