WHAT

is Andy Murray saying to Serena Williams as they play a mixed doubles match at Wimbledon? Our weekly picture feature offers you the chance to write an amusing caption in the speech bubble in the picture. Staple, glue or tape it to a postcard and send to: Caption Contest (984), Daily Mail, 2 Derry Street, London W8 5TT, or email your caption to:

pboro@dailymail.co.uk, to arrive by Thursday, July 18. The writer of the caption judged the best will win a £20 book token.