“Potter, Good Luck for today. I know you’ll win us that cup,” McGonagall said to him at breakfast.
“Thanks Professor. Don’t worry about it, it’s ours!”

Sirius clapped him on the back, barking a chuckle. “Yeah, it’s ours. My poor brother will probably cry when he loses the snitch.”

Half an hour into the game, and the Gryffindor seeker and caught the snitch, the cup was theirs!
James almost fell of his broom from surprise.
ROAR! He heard in the crowd.

He looked down and saw Sirius in front of the megaphone, roaring into it, surrounded by Scarlet and Gold.