Once Roger Federer's mark of 17 major triumphs looked impossible to emulate but Djokovic, all four Grand Slam titles safely banked in his apartment in Monte Carlo, could have done so by the end of next year. The only factor that could plausibly deny him is injury. Ominously, though, the longer Djokovic lasted in his latest eclipse of Andy Murray, the more he acquired the sheen of a man burnished by a month's break in the Seychelles.
