He prepared for this competition. He wanted to represent the team. He worked hard, train morning and night, eat all the fitness training and everything.
He wanted to make everyone proud but when it was time to select who to represent the team, They left him and chose Brian with him.
He was angry because they threw him under the bus. He didn't know how to react, he felt frustrated, he felt depressed. After all he thought that it wasn't that they were going to choose.
They chose someone who didn't work harder like him. He didn't fumble, he never relented, he kept working hard but he felt the pain.