New Orleans Pelicans star rookie Zion Williamson says it has been hard to watch from the sideline as the team lost their first two games in the NBA bubble while his minutes have been limited. “It’s very tough to be honest because as soon as I start to break that sweat, I look over and that horn is for me and I have to come out the game,” Williamson said Sunday. “Also, when I do catch the flow of the game, like I said, that horn goes off and it’s for me.”