Former Arsenal forward Theo Walcott has now delivered a message to Mikel Arteta about Ethan Nwaneri. There is currently plenty of speculation surrounding Arsenal wonderkid Ethan Nwaneri. With club captain Martin Odegaard unfit to face Tottenham Hotspur in the North London Derby this weekend, and Declan Rice and Mikel Merino also unavailable for this fixture, attention has turned to how Mikel Arteta might adapt his midfield to cope with these absences. Nwaneri is one option to replace Odegaard on derby day. The 17-year-old is hugely talented and has featured at Premier League level before, with…