Chelsea have triggered the option to extend Guro Reiten's contract to keep her at the club until 2026.
The Norwegian signed for the club in May 2019 and has since made 177 appearances for Chelsea in all competitions, scoring 52 goals.
Reiten has won five Women's Super League titles, three FA Cups and two Conti Cups since joining from LSK Kvinner in Norway.
She was also named in the PFA Team of the Year for the 2021-22 and 2022-23 seasons, earning a Ballon d'Or nomination in 2023.
Reiten is Chelsea's leading scorer in the WSL this season with six goals, while only Manchester City's Khadija Shaw (nine) has scored more in the top-flight this term.
Across the league, only Lauren Hemp (26) has created more chances than her 24, though she is yet to register an assist, and has played the second-most crosses (55, behind Katie McCabe).
Chelsea are top of the WSL after 10 games, six points clear of second-place Manchester City, and return to action in the FA Cup fourth round against Charlton Athletic on Sunday.