Ruben Loftus-Cheek has agreed a contract extension with Chelsea that will keep him at Stamford Bridge until at least 2024, the Premier League club have announced.
The 23-year-old, who is currently recovering from an Achilles injury, made an impression in the first team during the final few months of Maurizio Sarri's reign.
Loftus-Cheek told Chelsea's official website: "I'm really happy and pleased that I get to stay here for another five years.
"It's the place where I've grown up playing and hopefully I'll be playing here for a lot longer."
Loftus-Cheek first joined the club as an under-eight and progressed through the youth ranks to the first team, for whom he has made 72 appearances.
An important loan spell at Crystal Palace gave the midfielder valuable top-level experience and coincided with his first full England call-up against Germany in November 2017.
He added: "At eight or nine years old, of course you never think you'll be here for so long because you just want to enjoy yourself and play with your friends.
"When I look back and see how the hard work has paid off, it's a good feeling. That only makes me want to work harder to achieve more in the future.
"I hope to win a lot more trophies with the team and personally it's just about trying to do as well as I can and work hard to be a key player for Chelsea."
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Ruben Loftus-Cheek hopes to continue to make an impression on Maurizio Sarri and force his way into the head coach's first-choice Chelsea team.
Loftus-Cheek came off the substitutes' bench to score in Sunday's 2-0 win over Fulham, his second goal providing a valuable cushion as Sarri later lamented the failure to kill off their opponents.
It was Loftus-Cheek's first Premier League appearance since October's win at Burnley and afterwards Sarri said the England midfielder "solved me problems".
"When I get time to play I am always doing my best," Loftus-Cheek said on chelseafc.com.
"This season it looked like I am getting time in the Europa League and I had to be ready for that.
"And if I do well in the Europa League then maybe I will get more minutes in the Premier League, like this game, and I will try to do my best.
"The more I play the better I feel and the better I play. Days like this I get my time to play and try to take it, whether that is a goal or an assist or making blocks.
"I have to do things both defensively and offensively."
Chelsea lost for the first time this season, ending an 18-match unbeaten competitive run, at Tottenham and responded with last Thursday's 4-0 Europa League win over PAOK.
Next for the Blues is Wednesday's Premier League clash at Wolves before Saturday's visit of leaders Manchester City to Stamford Bridge.
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Midfielder Ruben Loftus-Cheek is set to make his first Chelsea start of the season in Thursday's Europa League Group L clash with Hungarian champions Vidi.
Loftus-Cheek has overcome a shin problem, while winger Pedro (shoulder) and defender Antonio Rudiger (groin) are fit again.
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