4. Kelechi Nwakali – £2.98 million:
The highly-rated Nigerian forward was given a five-year deal by the Gunners. He caught the attention after being named the Player of the Tournament at the Under-17 World Cup. He is currently sent out to Dutch club MVV Maasstricht on a season-long loan.
Bought From: Diamond Academy (Nigeria)
Announced: 5th August
Position: Centre Forward