We love a good debate. Especially ones we can have on Twitter, Facebook or the internet.
You remember what color is the 'The Dress' debate that blew up the internet a few years ago.
And what color are the flip-flops.
Well, now the world of tennis ( of all sports) is involved in a heated social media debate.
It's about... you guessed it-what color are tennis balls?
The debate started steam rolling after a fan asked tennis great, Roger Federer what color are tennis balls. A woman tweeted the exchange and the rest is becoming debate history.
Here's Federer's answer:
OKAY ITS OFFICIAL MY DAD JUST ASKED @rogerfederer IF TENNIS BALLS ARE YELLOW OR GREEN AND HE SAID THEY ARE YELLOW pic.twitter.com/EXdXRr0oFa
So we want you to weigh in. What color are tennis balls?