England winger Nathan Redmond has committed his long-term future to Southampton by signing a new four-year contract until the summer of 2023.
The 25-year-old played a major role in Saints' revival under manager Ralph Hasenhuttl last season, scoring nine times in 43 appearances in all competitions.
Once-capped international Redmond, who picked up the south-coast club's player of the season award for 2018-19, also returned to England contention last term and was selected in Gareth Southgate's initial squad for the Nations League finals in May.
"I'm really happy to have signed, and I'm just wanting to get the season up and going now," Redmond told Southampton's website.
"We've got a great group of players here, who I've been with for the last three years.
"I feel like we can hopefully build something special and to be a part of it for the next four years is good for me."
Redmond, who began his career with Birmingham, joined Southampton from Norwich in 2016 and has registered 18 times in 129 appearances during his time at St Mary's.
Each of his nine goals last term came following the appointment of Austrian coach Hasenhuttl in December as Saints recovered from a poor start under Mark Hughes to finish five points clear of relegation in 16th place.
Hasenhuttl said: "He's a player who showed in the last season that he is very important for Southampton and I think it's a massive signal for the club, and for us all, that he wants to follow our way.
"It's a very positive day for us."