Coliseum back to full capacity for Oakland A's games starting June 29 - Athletics Nation
MLB uses cardboard cutouts to replace absent fans – Eagle Eye News
As sports resume, some fans will be made of cardboard
No more cardboard cutouts: Giants, A's allowed to have live fans in seats on Opening Day, Archives
White Sox fan buys 100 cardboard cutouts of himself to take up infield section at Guaranteed Rate Field
Why sports stadiums are suddenly full of cardboard fans - The Hustle
Giants beat A's in MLB game like no other
Oakland A's receive approval to have fans at Coliseum on 2021 Opening Day - Athletics Nation
AP PHOTOS: Empty stands, masked players as baseball returns, Covid-19