Only true Wimbledon fans can spot the tennis ball in under nine seconds, can you?

It's the last day of Wimbledon today (Sunday) and Nub News has got a brain teaser for all tennis fans!

Federer had his headband. Serena had her power stance. But what if your trickiest opponent on the court… was a tennis ball in disguise?

A brand-new puzzle is "serving up" a visual challenge worthy of Centre Court: can you spot the hidden tennis ball among a sea of apples in under 9 seconds?

Think you've got the sharp reflexes of a pro? This brain teaser from 1337 Games will test more than just your eyesight, as it's a match for your mental agility too.

Challenge a friend, your doubles partner, or anyone who claims to have an eagle eye. 

Spot the sneaky tennis ball, then pass the puzzle on and see who's fastest.

An optical puzzle where people must find the tennis ball hidden among the fruit (Image: 1337 Games)

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Need a hint? The ball is lurking somewhere in the bottom right quadrant.

Emre Aksu, a game critic from 1337 Games, said: "To be able to play at Wimbledon, athletes must have precision, speed, and focus, the three things that this puzzle also demands.

"We wanted to create something that captures the spirit of the contest. We've all had that moment when we talk to the TV screen and say 'How could you miss that', so we wanted to show how difficult spotting something that should be obvious can be when your brain is overloaded."

Good luck!