Yankees and White Sox fans might have to wait another day to watch their teams play ... TMZ Sports has confirmed the MLB is considering postponing Wednesday's game due to smoke coming from ongoing wildfires in Canada.
A spokesperson for the league tells us ... the contest between the two squads is still on for now, but if the conditions get worse or become too dangerous for the players and fans, they will postpone the game.
The rep also told us the league is communicating with health and weather experts ... and will make a decision based on their recommendations.