If you're interested in attempting the famed 9-9-9 Challenge at a Philadelphia Phillies game this postseason, the club has you covered with a ready-made kit ... sort of. Confused as to what the 9-9-9 ...
It's MLB Opening Day 2026, and as we've seen with many things in our lifetime, there's something that's gone viral that has now been co-opted by the mainstream. In this case, it's the 9-9-9 challenge.