Josh Sims has signed a new contract at Southampton which ties the academy graduate to St Mary's until 2020.
The 19-year-old has played eight times for Claude Puel's side this season after breaking into the first-team set-up on the south coast.
Sims, who has also represented England at Under-18 level, made an instant impact as he set up Charlie Austin to score the only goal of the game in a victory over Everton in November.
He has also featured for the Saints in the Europa League and now wants to continue his progress having penned a fresh three-and-a-half year deal.