Becker: Reaction to coaching job surprised me

Serbia's Novak Djokovic's coach German Boris Becker attends his men's singles first round match against Kazakhstan's Andrey Golubev on day one of the 2014 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on June 23, 2014. AFP PHOTO / GLYN KIRK - RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)
Serbia's Novak Djokovic's coach German Boris Becker attends his men's singles first round match against Kazakhstan's Andrey Golubev on day one of the 2014 Wimbledon Championships at The All England Tennis Club in Wimbledon, southwest London, on June 23, 2014. AFP PHOTO / GLYN KIRK - RESTRICTED TO EDITORIAL USE (Photo credit should read GLYN KIRK/AFP/Getty Images)

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    Becker: Reaction to coaching job surprised me

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CNN's Don Riddell talks to Boris Becker about coaching Novak Djokovic and the reaction to the announcement.