Conte's side lacked energy and drive as they were forced to settle for a dour 0-0 draw against 10-man Leicester at Stamford Bridge yesterday.
Asked if he took Cesc Fabregas and Eden Hazard off so early, due to fatigue, Conte responded: "Yes".
Three points from Chelsea's 0-0 draw with Leicester at Stamford Bridge.
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The result represented the first time Chelsea have drawn three straight matches 0-0 in their history, and Conte blamed fatigue rather than singling out the misfiring Morata. Leicester were the better side and created more opportunities, excelling in the first half before dropping much deeper after the break.
Vardy failed to hit the target from unsafe positions twice in less than a minute, before Wilfred Ndidi's free header following a corner was parried brilliantly by Thibaut Courtois and Antonio Rudiger stopped Aleksandar Dragovic slotting home on the follow-up.
Chelsea vs Leicester City: Premier League prediction, TV, live streaming, start time, team news, line-ups, head to head
Chelsea are unbeaten in six league matches home and away, earning 14 points out of a possible 18.
Despite David Luiz being on the bench, Antonio Conte chose Andreas Christensen as the man to replace the England global.
Keown feels most Premier League teams have worked out Chelsea this term and they are playing nowhere close to the level they achieved last season.
Leicester left West London with a well deserved point, despite having been reduced to 10 men during the second half after Ben Chilwell's dismissal.
Alvaro Morata, who missed a hatful of chances at Arsenal in Chelsea's 2018 opener, was ineffective up front again on Saturday, repeatedly bullied out of possession by the impressive, imperious Leicester centre-back Harry Maguire.
For that, Claude Puel must take a large slice of the credit in this battle of the two most recent Premier League champions. In both systems we are conceding less but, with both systems, we are scoring less than last season.