Factbox - Key moments in Chelsea's title season
(Reuters) - Key moments in Chelsea's Premier League title-winning season.
Aug 15, Chelsea 2 West Ham United 1
Antonio Conte's now familiar manic goal celebration got its first showcase as Diego Costa popped up in the 89th minute to clinch victory in the Italian's first competitive match in charge.
The fact it was Costa and Eden Hazard, both of whose poor form was blamed for Jose Mourinho's sacking the season before, who were on target augured well for the season ahead.
Hazard had to wait until April for his first goal the previous season when Chelsea went from champions to also-rans. Costa also scored a late winner a few days later at Watford.
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Sep 24, Arsenal 3 Chelsea 0
The early-season optimism had already been jolted by a home defeat against Liverpool, but this capitulation at Arsenal made Conte's early progress appear to be a false dawn.
Yet the way he reacted to trailing 3-0 after 40 minutes proved the trigger for Chelsea's success.
He replaced Cesc Fabregas with Marcos Alonso and switched to a back three of Davis Luiz, Gary Cahill and Branislav Ivanovic with Alonso and Cesar Azpilicueta as wing backs.
Immediately Chelsea looked more balanced and, though there was no way back on the day, it was a lightbulb moment for Conte.
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Oct 1, Hull City 0 Chelsea 2
For the first time Conte began with a back three of Cahill, Luiz and Azpilicueta while he gave a start to Victor Moses at right wing back where he was to become a key part of Chelsea's 13-match winning run.
The new formation gave Luiz the time to start many of Chelsea' attacks, N'Golo Kante to patrol the central areas in workaholic fashion and Hazard to drift around in a free role.