Christmas truce - Wikipedia
Why there are no football matches on Christmas Day - The Athletic
PETER CROUCH: English football's mad festive schedule is a tradition we MUST protect
NFL Record: What is the record for the longest game in NFL history?
The last time football was played on Christmas Day in England
Which teams have had the biggest climbs and falls after Christmas Day?, Soccer
Yuletide Meetings: The lost tradition of Christmas Day football
Football is played over the Christmas period in the UK because of medieval traditions and hard-fought workers rights
Boxing Day football: game and Christmas collide to make us all excitable children, Soccer
Is any football played on Christmas Day around the world?