Issiaga Sylla (born 1 January 1994) is a Guinean footballer who currently plays as a full back for Ligue 1 side Toulouse.
 He is a left-back, but can play as a left-winger.
Christopher Jullien (born 22 March 1993) is a French professional footballer who currently plays as a centre back for Ligue 1 side Toulouse.
 He is a French youth international having represented his country at under-20 level.
Nils Ola Toivonen (born 3 July 1986) is a Swedish footballer, who plays as an attacking midfielder or striker for Ligue 1 side Toulouse, and the Sweden national team.
Alexis Blin (born 16 September 1996) is a French footballer who plays for Ligue 1 side Toulouse as a defensive midfielder.
Yaya Sanogo (born 27 January 1993) is a French professional footballer who plays as a striker.
 He currently plays for Ligue 1 side Toulouse.
Kelvin Amian Adou (born 8 February 1998) is a French footballer who currently plays for Ligue 1 side Toulouse.
 He plays as a defender.
Zinédine Machach (born 5 January 1996) is a French footballer who currently plays for Ligue 1 side Toulouse.
 He plays as a midfielder.
Le Club Omnisports des Ulis is a French association football club founded in 1977.
 They are based in Les Ulis, Essonne and are currently playing in the Championnat National 3, the fifth tier of the French football league system.
 They play at the Stade Salinier, named after Jean-Marc Salinier, a local politician from the area, in Les Ulis.
 CO Les Ulis is primarily known for being the club where France national team members Patrice Evra and all-time leading goalscorer Thierry Henry began their careers.
 The club has also developed emerging youth prospects, such as Anthony Martial, Yaya Sanogo and Sega Keita.
Sami Larabi (born 13 April 1996) is a French footballer who currently plays for the reserves of Ligue 1 side Toulouse.
 He plays as a center back.
Alban Lafont (born 23 January 1999) is a French professional footballer who plays as goalkeeper for Ligue 1 side Toulouse and the France U20 national football team.
 Having progressed through the academy of AS Lattoise, Lafont signed for Toulouse in 2014 and became the youngest goalkeeper ever to play in Ligue 1 upon making his debut the following year.
 He has since made over 60 appearances for the club.

Question: CO Les Ulis has developed which striker who now plays for Ligue 1 side Toulouse?
Answer: Yaya Sanogo