Are tennis balls yellow or green? This age-old debate has sparked countless discussions and divided opinions across the nation. Even tennis, Roger Federer has weighed in on the topic.

largely as the white balls were getting stained green on the grass, sometimes making them almost impossible to see on TV, where tennis was increasingly popular.” ...

FLUSHING, N.Y. — Against the blue and green of the Billie ... the normal-sized tennis ball floating obligingly onto her racket ready to be put away, the big ones were behind her chair, in ...

This was around the same time the balls defaulted to the optic yellow color to make for easier visibility when games were broadcast on television. So will a sealed can of tennis balls last for years?

even the tennis balls with which the players play. The grass is green and lush, and the player’s white outfits are impeccably pressed and stainless. And the balls have a pop to them that is just ...