It's 72-hours. I'm guessing that by saying 48 hours you mean there has to be 2 off days in between, and figured everything correctly. But with 2 days off you have roughly 72 hours from the end of one game and the start of the next. If it were only 48 hours you would only need one day off. EG NYCFC play Saturday afternoon, 72 hours after the soccer game ends it's Tuesday night. And in fact whenever the Yanks return from a road trip and their first home game is Tuesday night NYCFC plays Saturday afternoon. If they only needed 48 hours the soccer game could be Saturday night or Sunday afternoon.