US Open Tennis on Twitter: "What color is a tennis ball, green or yellow? Vote by tweeting #USOpenNow and “Green” or “Yellow”! https://t.co/x7uBpXId2C" / Twitter
Hugh M. Cunningham Companies - The latest internet color debate...are tennis balls green or yellow?? | Facebook
![a different green tennis ball between yellow tennis balls on a white background, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-008646742 | agefotostock a different green tennis ball between yellow tennis balls on a white background, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-008646742 | agefotostock](https://previews.agefotostock.com/previewimage/medibigoff/6a987c0d868c484486a62333a411a233/esy-008646742.jpg)
a different green tennis ball between yellow tennis balls on a white background, Stock Photo, Picture And Low Budget Royalty Free Image. Pic. ESY-008646742 | agefotostock
![What colour are tennis balls? Roger Federer finally confirms if they're green or yellow - Mirror Online What colour are tennis balls? Roger Federer finally confirms if they're green or yellow - Mirror Online](https://cdn.jwplayer.com/v2/media/G0FvTTxk/poster.jpg)
What colour are tennis balls? Roger Federer finally confirms if they're green or yellow - Mirror Online
![Wilson Tennis on Twitter: "Like if you think Tennis Balls are green Retweet if you think Tennis Balls are yellow https://t.co/EBNvJ0s5r0" / Twitter Wilson Tennis on Twitter: "Like if you think Tennis Balls are green Retweet if you think Tennis Balls are yellow https://t.co/EBNvJ0s5r0" / Twitter](https://pbs.twimg.com/media/EIeugOVXsAAw-iR.jpg:large)