Political scientists have a term for the tactic, that has been used by some leaders including Nixon, to persuade adversaries that they are temperamentally capable of anything, to extract concessions. But can it work in the long term?
After taking two steps forward last week, England have taken another back in their crushing loss to India. BBC Sport explores the issues holding them back.
Watch the bizarre moment Anastasia Pavlyuchenko is denied game point due to the electronic line-calling system failing, resulting in the point being replayed and leading to Britain's Sonay Kartal winning the game.
With Arsenal hoping to sign the final piece to complete the jigsaw puzzle of their midfield, BBC Sport looks at what they would be getting with
Martin Zubimendi.
