The Italian is known to have a demanding fitness regime at Chelsea with his players drilled at high intensity.
Chelsea have benefited this season from a lack of European football and have fortunately suffered no long-term injuries to key players.
Fans reflect on Arsenal's woeful defeat to Chelsea
Sat, February 4, 2017
Express Sport brings you the best tweets as Arsenal fans reflect in their woeful defeat to Chelsea on Saturday
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Arsenal fans reflect in their woeful defeat to Chelsea on Saturday
John Terry picked up a knock but has hardly had a look-in since with the side flying towards the title.
And Wilkins has praised their effort and work-rate.
Chelsea boss Antonio Conte
He said on Sky Sports: "Chelsea are the fittest players in the Premier League.
"I watched Manchester City absolutely annihilate Swansea during the first half on Sunday but they couldn't keep up that level of fitness. Chelsea can.
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Ray Wilkins has praised Chelsea's fitness under Antonio Conte
"When Chelsea lose the ball, their work-ethic to get back is incredible.
"They're working so hard for each other."