2021 AT&T Byron Nelson field: Dustin Johnson withdraws from final event ahead of PGA Championship | CBS Sports Headlines 2021 AT&T Byron Nelson field: Dustin Johnson withdraws from final event ahead of PGA Championship The No. 1 player in the world is out of the tournament as he experiences knee … Continue reading 2021 AT&T Byron Nelson field: Dustin Johnson withdraws from final event ahead of PGA Championship