Beckham has had his share of World Cup heartache over the years, culminating in the torn achilles tendon which has ruled him out this year.
At his first World Cup, France '98, his red card against Argentina made him England's scapegoat, but he fought back to later become captain and the nation's most capped outfield player ever.
Royalties: David Beckham greets King Molotlegi as England reach their base
The 35-year-old has joined Fabio Capello's backroom team and arrived in South Africa with them on Thursday, but he made time to contact Walcott, a surprise omission from the 23-man squad on Tuesday.
Beckham told the 21-year-old to keep his chin up and work hard and said he would come back stronger. He promised to call soon to explain how he bounced back from his disappointments over the years.
Just days before Capello's bombshell, Walcott had spoken of his excitement at the prospect of improving his crossing with one of his idols. In 2006, Beckham took Walcott under his wing when he joined the squad at 17, before the World Cup finals in Germany.
'Chin up, m8': Beckham text Walcott a message of support after he was axed
Beckham will be a link between the squad and management in South Africa, helping general manager Franco Baldini identify and solve problems. Capello believes he will spot issues quickly because he is on a similar wavelength to the players.
He will be on the training pitches, but not coaching, and players wanting to raise a problem will be encouraged to take it to Beckham if they are reluctant to confront the manager.
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