2021 UFC event schedule: Conor McGregor vs. Dustin Poirier, Max Holloway vs. Calvin Kattar on tap | CBS Sports Headlines 2021 UFC event schedule: Conor McGregor vs. Dustin Poirier, Max Holloway vs. Calvin Kattar on tap The MMA leader turns its attention toward 2021 with a few events already on … Continue reading 2021 UFC event schedule: Conor McGregor vs. Dustin Poirier, Max Holloway vs. Calvin Kattar on tap