Is self-belief all you need? World number 114 Arthur Fery has stormed his way to the semi-finals. He attributes his success to an unshakeable confidence in his own abilities.
The wildcard who could win Wimbledon
Local man: Arthur Fery has lived in Wimbledon, five minutes from the tennis courts, since childhood. Glossary
Mirage - An optical effect where you see something that is not really there.
Wimbledon - An international tennis tournament held in London every year.
Composure - The state of being calm and in control of one's actions.
Wildcard - In tennis, when a tennis player is invited to a tournament despite not being ranked high enough to automatically qualify. Some event organisers choose wildcards personally.
French Open - An annual major (grand slam) tennis tournament organised by the French Tennis Federation and held at Stade Roland Garros in Paris.
Self-efficacy - Belief in your own ability.
Hormone - Chemicals carried in the bloodstream that alter the way your body's systems act.
Dogmatism - Having set ideas or beliefs that do not change, despite the facts.