Is a tennis ball green or yellow?
Updated | By Breakfast with Martin Bester
We fail to establish a
final answer and need your help…

According to the Telegraph the colour has been described as ‘fluorescent yellow, chartreuse, lime green however the official colour for tournament balls is “optic yellow’”
Roger Federer, who is currently ranked world No. 1 in men's singles tennis, finally settled the argument by saying they are… yellow!
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
— Delaney Dold (@delaneyanndold) March 19, 2018
It has nothing to do with colour blindness but more about perception!
What do you think – is a tennis ball green or yellow?
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