Jordy Clasie and Graziano Pelle were afforded warm receptions on their returns to Feyenoord as Southampton recorded a 3-0 friendly victory at De Kuip.
Clasie and Pelle each left Feyenoord to join their former boss Ronald Koeman at St Mary's Stadium, the former doing so earlier this month.
Pelle tapped into an empty net on 41 minutes after home goalkeeper Kenneth Vermeer had raced from his goal to cut out a ball over the top, only to be beaten by Dusan Tadic.
Southampton's lead was doubled after 61 minutes when Maya Yoshida was left unmarked to nod home Steven Davis' floated free-kick, the defender heading back across goal from eight yards.
Clasie and Pelle were duly withdrawn to further acclaim before two substitutes combined for the game's third goal.
Southampton are in Europa League action next week against another of Koeman's former clubs, Vitesse.
