Our Brazilian teenager started the month in fine form, with two goals and an assist in our win over Standard Liege.
Standard Liege (h) - Bitesize
Martinelli followed it up with a goal against Vitoria in our next Europa League game at Emirates Stadium, before netting another brace at Anfield during our Carabao Cup clash with Liverpool.
Martinelli's equaliser against Vitoria
The 18-year-old also impressed with his defensive work-rate in Premier League games, most notably against Bournemouth. Nobody made more tackles than our youngster, despite him only joining the action in the 63rd minute.