- Pair mutually decided to end collaboration
- Becker joined coaching team in late 2013
- Djokovic didn't name a replacement
- The Serb slumped in the second half of 2016
(CNN)Another chapter was added to Novak Djokovic's tumultuous year when the Serb announced he was parting company with coach Boris Becker, ending a fruitful partnership that produced six grand slam titles in three years.