A woman at the Celtics playoff game on Wednesday needed a boost -- literally -- 'cause she couldn't see what was happening on the court ... thanks to 7'6" Tacko Fall blocking her view.
The funny moment went down Wednesday night during Game 5 of the Celtics' series against the Bucks ... when a fan -- who is not 7'6" -- was trying to take in some playoff basketball ... but instead, she got a clear view of the back of Tacko's head.
In the clip, an arena staffer walks over to give the woman a booster seat -- much to her delight -- so she could finally watch the game in peace.