Novak Djokovic’s peace mission may have neutered killer instinct – McEnroe

• Former great questions Pepe Imaz’s influence on troubled Serb
• Djokovic awaits confirmation Andre Agassi will be at Wimbledon as mentorJohn McEnroe fears Novak Djokovic’s burgeoning spirituality could be draining the Serb of his “killer instinct”.The American, who wrestled with his own volatile personality for much of his career, says of the one-time shirt-ripping beast of the Tour: “From an emotional standpoint he perhaps felt he wanted to bring in som