"(If) I want to stay here for 10 years, then I have to win", the head coach said.
The former Barcelona forward has won the Premier League and FA Cup since switching to Stamford Bridge from Camp Nou three years ago.
There is less bullishness about Thibaut Courtois, who has shown little interest in extending the contract that expires next summer, but all parties know a high-quality replacement goalkeeper must be secured before he is allowed to leave.More news: Venezuelan President Nicolas Maduro Survives Apparent Assassination Attempt | Trending
Thibaut Courtois' future at Chelsea remains uncertain, but Sarri hopes the Belgium goalkeeper will stay. "I am happy about it". Under Sarri's guidance at Napoli, the Brazil-born midfielder had blossomed into one of Europe's most coveted players, and had risen to such heights in Italy that he was even anointed as the heir to the great Andrea Pirlo.
Willy Caballero deputised in Courtois' absence and after a nervy start to the game, the veteran Argentine goalkeeper made some important saves to keep the scoreline respectable.
Chelsea kick off their Premier League campaign with an away trip at Huddersfield on Saturday, and Sarri must complete his transfer business on Thursday.More news: Donald Trump taunts basketballer LeBron James in late night Twitter rant
"We know that they are a very good team, but we will try to play our game".
Sarri succeeded Antonio Conte few weeks ago after the latter fell out of favour with the club's hierarchy last season.
"There is not a Willian problem", Sarri said.
"He has to improve on the defensive phase, I think". "Obviously we have a new manager now, he's got a new philosophy and we're looking good in training".More news: Apple Becomes First Company to Reach $1 Trillion Worth
"I am comfortable here and want to win new titles and trophies", said Pedro.