Novak Djokovic withdrawing from National Bank Open: tournament director

Djokovic is a four-time champion in Canada, having won titles in 2007, 2011, 2012 and 2016. No reason was given for his withdrawal from the tournament.
                              Djokovic is a four-time champion in Canada, having won titles in 2007, 2011, 2012 and 2016. No reason was given for his withdrawal from the tournament.

Source: Novak Djokovic withdrawing from National Bank Open: tournament director