Novak Djokovic's ferocious focus took him to the top of the game but it is hard to see him rekindling the flames of that obsession, writes Russell Fuller.
Andy Murray has no injury worries heading into his third round match with Sam Querrey, while Dan Evans prepares to meet Bernard Tomic.
Novak Djokovic has "lost his edge" and is "a shadow of what he was at his peak", says Pat Cash after the Serb's shock Australian Open exit
Defending champion Novak Djokovic is beaten in five sets by world number 117 Denis Istomin in the Australian Open second round.
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Defending champion Novak Djokovic suffers a shock defeat by world number 117 Denis Istomin in the second round of the Australian Open.
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