September 2, 2021 12:46 pm United Center vaccination rules for Bulls, Blackhawks games The United Center announced new COVID-19 protocols for all events, including Chicago Bulls and Blackhawks games. Attendees will need proof of vaccination or a negative COVID-19 test. Bears Videos 0:52 Caruso named 23-24′ Hustle Award winner 0:55 Karnišovas says Donovan is not to blame for Bulls' shortcomings 0:46 Bulls still in ‘wait and see' mode with Lonzo Ball 0:56 Bulls' Artūras Karnišovas admits roster strategy failed, promises changes 0:42 Alex Caruso: ‘Nobody's satisfied' with Play-In loss