Southampton have sacked manager Will Still after just five months in charge.
The 33-year-old was only appointed in May after leaving French Ligue 1 side Lens so that he could return to the UK, but he has won just two of 13 Championship games this season.
Saints were booed off after their 2-0 defeat by Preston North End on Saturday, a result which dropped them to 21st in the table.
In a statement, the club said Ruben Martinez, Clement Lemaitre and Carl Martin have also left their positions at the club, while men's under-21 head coach Tonda Eckert will take over on an interim basis.