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John McEnroe admits he would not have coped well if he had lost to his younger brother Patrick.

The three-time Wimbledon champion says he admires the Williams sisters, especially how older sister Venus has helped Serena develop, but admits he would not have been as magnanimous with his younger brother Patrick.

On being asked if he'd stay to cheer his brother on at Wimbledon if he'd lost to him John says "probably not. I know that's wrong!".

This clip is from 6-love-6 on Thursday 9 July.