The National Football League’s postseason started last weekend. The winner-take-all tournament features 14 teams vying for the Super Bowl title. But after a month in which a record number of players had been added to the lists of the COVID-positive, that number has suddenly come to approach zero. It’s almost as if the playoffs were the antidote to COVID-19 in the NFL.

Between Dec. 1-27, 521 players on the league’s 32 teams were added to the league’s reserve/COVID-19 list, CBS Sports reported. The NFL even had to postpone three games because rosters of several teams were depleted. During the penultimate week of the regular season, a record number were on the list. The week before the playoffs started, there were 80 players listed.