Join the world's longest tennis rally

With a sponge ball in the lounge? In the garden, with plant pots for a net?

However you like, upload your own shot to Twitter, using the hashtag #anyonefortennis and join in the world's longest rally.

You'll be hitting alongside the likes of Andy Murray, Andrew Flintoff, Evan Davies and Hacker T Dog, so be sure to get creative!

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