Assaidi has joined the Potters on a season-long loan from Liverpool and becomes the club’s fourth signing of the summer.
Stoke boss Mark Hughes said: “Oussama had a few options and I’m delighted he has chosen to join us. He’s an exciting player, who has great pace and is very direct and will certainly add another dimension to what we already have at the Club.”
Chief Executive Tony Scholes said: “Mark identified the need to add more pace to the team and Oussama certainly fits the bill in that regard.
“He is an exciting talent and will certainly strengthen the resources at Mark’s disposal this season.”