Manchester United winger Amad Diallo has signed a new five-and-a-half-year contract, until June 2030.
The 22-year-old's previous deal had been due to expire at the end of the season, though the club had the option of triggering a 12-month extension clause.
But United have opted to hand fresh terms to the Ivory Coast international, who has scored six goals in 27 appearances this season.
"I am really proud to have signed this new contract. I have had some incredible moments with this club already but there is so much more to come," Diallo said.
"I have huge ambitions in the game and I want to achieve history at Manchester United.
"It has been a difficult season for everyone, but I fully believe that we are on the right path and the future is going to be really special. I am ready to give everything to help the team and make our supporters proud again."
Diallo joined Manchester United in 2021 from Italian club Atalanta and has scored nine goals in 50 appearances.
"Everyone is delighted with Amad's development," technical director Jason Wilcox said.
"His quality on the ball, versatility and determination makes him a key part of the future of Manchester United.
"The best years of his career are ahead of him, and we all look forward to helping Amad to reach his immense potential and achieve success at the club in the coming seasons."