18 December 2013 Last updated at 16:04

Boris Becker: Novak Djokovic's new coach wins Wimbledon in 1985

Boris Becker, who has been appointed as the new coach of world number two Novak Djokovic, wins Wimbledon as an unseeded 17-year-old in 1985, defeating Kevin Curren in four sets.

The six-time Grand Slam winner will be tasked with helping Djokovic regain his place as world number one which he has lost to Spaniard Rafael Nadal.

In 2013, the Serb won his third successive Australian Open title and seven other titles including the ATP World Tour Finals.