What is the oldest team sport in history?

by HamletTheGreatDane
Mictlantecuhtli

The Mesoamerican ballgame had a ~2,900 year run from 1400 B.C.E. to around the time of the Spanish conquest. I'm not sure how long they continued to play the game after that.

Hill, Warren D.; Michael Blake and John E. Clark (1998). "Ball court design dates back 3,400 years". Nature 392 (6679): 878–879.