Name: Yaya Sanogo
Age: 20
Position: Striker
Move: Auxerre to Arsenal for free at end of contract
French football writer Matthew Spiro: Capturing Yaya Sanogo on a free from Auxerre could prove a masterstroke by Arsenal manager Arsene Wenger if the precocious Frenchman avoids injuries.
The tall, powerful attacker first caught Wenger's eye when starring for France Under-19s three years ago.
The Gunners, and a host of other top clubs, sent scouts to see the 17-year-old make his Auxerre debut in May 2010. Sanogo impressed, but suffered a horrific double leg fracture five months later.
That injury, and the knee problems that followed, sidelined him for two years.
Ready to quit and seek employment at the post office, only the steady flow of text messages from Hatem Ben Arfa and
Abou Diaby prevented him.
Wenger never forgot Sanogo's raw ability. When the fit-again Frenchman scored four in 17 minutes for Auxerre against Laval earlier this year, he made his move.
Wenger did well to act early. Sanogo top-scored for France as they won the Under-20 World Cup in July.
The big question now is: can he stay fit?