Sarri was spotted on numerous occasions during his career in Italy smoking in stadiums, or on the sidelines, such as the clip below where he lit up in the company of two bodyguards.
The winning goal came just 34 minutes in, as World Cup-winner N'Golo Kante scored with a nice finish to the far post.
Huddersfield were a persistent threat from crosses into the box and they went close to an equaliser when Steve Mounie headed Mathias Jorgensen's flick-on against the inside of the upright.
The Blues were the sole aggressors in the second half and, after Hamer parried a header from Antonio Rudiger behind, Alonso sent an acrobatic effort against the crossbar in the 58th minute.More news: Positive Update On Ramsey Ahead Of Premier League Opener
"We have been working really hard with (Sarri)", he said.
Maurizio Sarri's side bossed possession from the outset in West Yorkshire, where it took 20 minutes for Alex Pritchard to muster a shot on target - an attempt that was straight down the barrel and comfortably stopped. The Italy worldwide barely misplaced a pass and orchestrated the visitors' approach by keeping himself open and barking out orders.
"I've seen the spirit, attitude and togetherness we need for our season".More news: House of Frazer bought by Mike Ashley
Morata once again looked off the pace, but the performance was otherwise positive for Chelsea, who quickly forgot their beating by Man City. In Sarri's 4-3-3 he struggles to link up with his team-mates and often cuts an isolated figure in the final third.
Kepa, the world's most expensive goalkeeper after his £72.1million move from Athletic Bilbao on Thursday, had little to do on his debut as Chelsea cruised to a 3-0 victory in Maurizio Sarri's first game in charge.
The result propelled Chelsea to the summit of the league table while it looks like Huddersfield Town will have to fight tooth and nail to survive in the top-flight this year.
"There has been a misunderstanding that he wanted to get a move for the wrong reasons, but he was pushing to go out of Chelsea because of his child", said Henrotay.More news: Nasa spacecraft heads to sun for closest look yet